Sharpe looked almost certain to be watching the Wallabies take on Britain and Ireland's elite from the sidelines after he announced his retirement from domestic competition at the end of the Super Rugby season but his 111-cap international career keeps going on and on.
The 34-year-old never intended to still be pulling on the gold jersey this late in the day but Deans persuaded him to postpone his plans to walk away from the Wallabies earlier this summer.
An injury crisis ahead of the inaugural Rugby Championship saw Sharpe agree to carry on for the duration of the tournament, while further setbacks on the fitness front led to a decision to play on until after the Bledisloe Cup encounter with the All Backs on October 20.
And now Deans has worked his managerial magic once more by securing the services of his ultra-reliable second row for the forthcoming Test matches with France, England, Italy and Wales.
"Sharpey's presence and leadership has been a constant throughout the year - one of the few aspects of continuity that we've had through a season that is probably without precedent in terms of disruption," said Deans.
"For that reason, it was straight forward asking him to continue, both following on from the June Tests when he had originally planned to retire, and then again following the Rugby Championship.
"While he has a range of other commitments in his life, and touring means putting them on hold again, I had no doubt that he would be keen to continue.
"You only have to look at what he has achieved with the group since he took over as captain.
"His influence has been immense, he is arguably playing the best rugby of his career but, most importantly, he is enjoying the experience."
Nathan Sharpe is hugely respected inside and outside Australia
While Sharpe hasn't yet hinted at carrying on any further than the Cardiff clash with the Welsh on December 1, his importance to the Wallabies and his own enthusiasm for the cause suggests a similar announcement could follow before the end of the year.
The latest Lions adventure will be just six months away by the time Sharpe and co head back home from their European adventure, so suddenly the prospect of the former Reds and Force giant facing Warren Gatland's tourists seems far less of a long shot.
It appears even more of a possibility when you consider the fact that those autumn fixtures are Australia's last scheduled matches before the Lions arrive Down Under.
The rest of the Wallaby squad won't be back in Super Rugby action until mid-February so Sharpe would effectively only need to prolong his playing days by another four-and-a-half months to enjoy what could be the perfect send off.
And even though he is giving nothing away with regards to his chances of wearing national colours in 2013, his commitment to his country may just persuade him to offer his substantial backbone to the Wallaby pack for the biggest challenge of all.
"Playing for Australia is something I have never taken for granted," said Sharpe, who played against the Lions for Queensland 11 years ago.
"As such, to be asked to continue beyond the deadline I had set for myself was both flattering but also a request that was very difficult to turn down.
"I have never known a season where the Wallabies have faced such adversity as we have this year. To show the spirit and character that the team has is a mark of how the group has grown, both individually and collectively, and I have enjoyed playing my part in that.
"The opportunity to lead the Wallabies again on what will be a challenging but exciting tour was too tempting. It is not easy to say no to your country."
If Sharpe does eventually decide to carry on into Lions territory, two of the men who held the captain's armband before him are convinced the Wallabies will be in far better place by that time.
Fellow second row James Horwill and influential openside David Pocock are among a lengthy list of injured stars currently unable to aid Wallaby efforts.
Horwill has been sidelined for the entire international season with a hamstring problem, while Pocock suffered a nasty knee injury in the Rugby Championship opener with the All Blacks, but both men have been impressed with the attitude and application shown by the wider squad in their absence.
And with a number of youngsters making their Test bows and fringe players being handed game time they were previously denied, Horwill and Pocock reckon a year of bad luck will bring long-term benefits for the beleaguered Wallabies.
"It has certainly given players an opportunity and this should add to the depth of the Wallabies in years to come," said Pocock.
"It has been a tough year. We had injuries in the June Tests but managed to win the series against a spirited Welsh team, but to beat the All Blacks and Springboks you have to be on top of your game and we have fallen short against them.
"I don't think it is due to a lack of effort, we have just not been good enough on the night and it is a steep learning curve at that level.
"I'd preface that by saying that it will take a lot of hard work and some very good player management during the Super Rugby season to ensure we have as many players available for selection as possible come the June Tests and then later in the year.
"New Zealand are clearly the best in the world at the moment and that has been evident in the Rugby Championship. That is the challenge - to close the gap and become more deserving."
David Pocock believes the Lions will face an improved Australian outfit
The Wallabies were well beaten by the All Backs in August but they have a chance to avenge those defeats when they meet again in Brisbane in a week's time.
Horwill has often spoken of the desire to catch up their trans-Tasman rivals and he remains positive that they won't always be forced to play second fiddle to their neighbours.
"We know that we as a country, on our day, have the ability to beat any country in the world," added Horwill.
"Being No1 in the world is a by-product of performing well all the time in every outing that you have. We get an opportunity to prove that we can match it with them (the All Blacks) and I'm confident we can.
"While they've been playing excellent rugby with an exceptional amount of depth in all areas of their game, they're not unbeatable.
"I talked about consistency - even when they have an off day they are still able to grind out a win. They are an amazing side but I still don't think they're that far ahead of everyone else. It's not a bridge too far."