Homesickness has been cited as reason for the early return. Speculation has linked the player with a return to his former club, Wigan Warriors.
“I’m definitely going to be in Super League, I can say that. I can’t say exactly where because I’ve not put pen to paper,” Tomkins told BBC Radio 5 live.
When asked about a potential return to Wigan, he replied: “Everyone’s going to think that’s going to happen, aren’t they? That was predictable that everyone would assume that.
“It’s one of those where I can’t say anything until I do sign somewhere and it will all be out of the way.
“Once it gets released it will be a lot easier for me wherever I am.
“I don’t think the announcement will take too long and hopefully it will be out of the way, not only for me but for people asking questions.”