I don't have a link but someone mentioned this was on the news (TV 1) on Tuesday to me. Apparently he isnt that keen on staying with them.
Understandably. From what I've read he was both disappointed and angry over being ommited, saying he's looking for another franchise and a chance to play against the Blues. To be fair, he is obviously the Blues most promising 1st 5/8th and this may be Kirwan's first real big mistake. He was never going to accept being told he wasn't good enough for the Blues at this stage in his career, and not sign with another team...
He's actually best off at the Blues as they don't have an established 10, but if he's not going to start anyway he may as well play for any other team - where he has a chance to develop in a winning enviroment. Amazing that Hobbs is there but not Ansombe.