The Cherry & Whites came within a whisker of the title last year, London Irish pipping them to the post in a thrilling final that saw the Exiles emerge 33-28 winners.
Ian Clark was the star of the show for Nigel Davies's side who led 28-5 at half-time before Jonathan Joseph turned the game in favour of Irish.
This year sees Gloucester host Group A at Kingsholm where they will welcome Bath Rugby, Exeter Chiefs and Worcester Warriors and Thirlby insists his side are not dwelling on last year's final heartbreak, instead the Cherry & Whites have their hearts set on building momentum for the new season.
"There's no such revenge, really. There will be a different team to last year and the main goal is to develop our players - this tournament is a good chance to do that," said Thirlby, who enjoyed a successful career with England 7s, competing in RWC Sevens 2001 and 2005.
"We are still finalising the team as it ties into existing pre-season plans but we have an idea that there will be experienced players to mix in with the younger guys.
"I think it's a really good concept. It's good for players to have a good run out and to showcase the best talent coming through for the longer format.
"To be honest, I'm a big believer that this is a great development tool. You get some players who might go on to specialise but the big programme is 15s.
"That does not mean that it cannot become a bigger sport in its own right as it is now part of the Olympics going forward."
The J.P Morgan Premiership Rugby 7s kicks off on 1st August at Kingsholm with rounds at Franklin's Gardens and Allianz Park and the Final at The Recreation Ground.
You can buy tickets now for the opening leg at Kingsholm on August 1st by clicking HERE or, for more information, follow @jpmorganrugby7s