The Strictly Come Dancing star, who toured New Zealand with the Lions in 2005, has been in confident mood when talking of his return to the game. He has claimed it will only take a handful of games until he is ready for Test rugby.
But the 28-year-old has admitted he has put more pressure on himself to ensure his return to action is successful.
"I've been talking myself up so I've got to back it up when I get back on the pitch," said Henson.
"The reason I came back to rugby is because I want to play for Wales. I've really missed it. I want to be in the Six Nations squad so I'm just concentrating on playing well for Saracens because if I do that, then I'm confident Wales will pick me. I hope so anyway."
Henson, who had previously played all his rugby at Swansea and the Ospreys, made four appearances during the 2005 tour of New Zealand and scored two tries.
The utility-back has signed for the Aviva Premiership big-spenders until the end of the season but is already eyeing a longer stay.
"I don't know a lot about the club yet but I'm a pretty loyal person and I'm sure I will fall in love with Saracens and stay long-term," added Henson.