Having had one outing for his new employers, Thomas has expressed his eagerness to remain at St Andrew's beyond the end of the current campaign.
"It comes down to how I perform. Hopefully I can put in the results to win a contract here," he said. "I would be buzzing if I was able to stay here.
"I think if this club can sort out the problems it's got, it would be a massive club to sign for."
Thomas spent the first half of the season with Blackpool, where he scored three goals.