“There is unfinished business for me with the Ospreys,” said Thomas.
“It feels like a new era, a new chapter for the Ospreys, it is an exciting time to be returning home, and this is something I really wanted to do, play for the Ospreys.
“It’s like there is a line in the sand has been drawn, with a new Head Coach, Toby Booth, and Mike Ruddock being involved. I know it has been a tough season there, but for me this is just an exciting challenge.”
The Ospreys have announced the re-signings of backrower Sam Cross, centre Owen Watkin, locks Bradley Davies and Adam Beard, wing Keelan Giles, fullback Cai Evans and props Ma’afu Fia, Tom Botha and Rhodri Jones in recent weeks.
Thomas has strong links with the Ospreys region, having played alongside Nicky Smith and Scott Otten for Pentrehafod Comprehensive School, Waunarlwydd RFC and Swansea RFC.
It means the ‘Waunarlwydd front row’ is finally being reunited with Thomas’ return home to the Ospreys this summer.
“I am a Swansea boy, born and bred, and the Ospreys are my region,” said Thomas.
“I used to watch them when I was younger with Nicky and Scott, and we used to argue about who was better, Adam or Duncan Jones. Nicky would always argue for Duncan, as a loosehead, and I would argue for Adam, as a tighthead.
“The three of us grew up watching the Ospreys and I know this would be a big thing for all of our families, if myself, Nicky and Scott played as a starting front row for the Ospreys.
“We played in school together, we played for Waunarlwydd together and we went through the Ospreys Academy pathway together. We grew up together and are best mates.
“The only difference is that they went down the Swansea College route and I went down the Hartpury College route, but to get the chance to play alongside each other again is great.
“If I am honest, I thought the opportunity to play for the Ospreys and alongside Nicky and Scott again had probably gone. It’s why I am so excited about the move home.”
Dan Griffiths, the Ospreys Rugby General Manager, believes Thomas is a player ready for the challenge of returning to Wales and playing for his home region.
“Nicky is a product of the Ospreys Academy, and from the moment there was an opportunity to return to the Ospreys you could see and hear the passion and enthusiasm he has for the club,” said Griffiths.
“He has always been regarded as a very good scrummager, and did extremely well with Wales at U20s level. Through time and experience he has learned that there is more to the game, and has matured at Bristol this season and put in some consistent performances.
“He is still only 25 and has his best years ahead of him. Nicky knows that the opportunity to return to your home region doesn't often come around in rugby, and he is determined to apply himself and contribute to his home region.
“Tighthead is a crucial position and as we have seen this season, and it is important to have a strong depth chart with players that can give the team a solid platform to perform from set piece.
“Bringing Nicky home to the Ospreys will provide strength and experience which is crucial in terms of the balance our squad.”