But having returned to the day job Gatland admits that he and his Wales charges have unfinished business with the World Cup, a competition they made the semi-finals of back in 2011.
"It's an exciting time with the World Cup just two years away," said Gatland, who took his victorious Lions to Downing Street this week.
"There is a lot of rugby to played before but we will be working hard in the build-up as we have some unfinished business in the competition."
"We are in a tough group alongside England and Australia but from our experiences the tougher the better as if you make it out of the group you are in a good position for the knock-out stages.
"The atmosphere in Cardiff will be great and we are excited about playing two pool games in front of our home supporters."