The other rumour doing the rounds at the moment, in relation to this topic, is that NJS maintenance will be doing the 717 heavy maintenance.
Must say, agree with some of the posts above. Unless, of course, Impulse take over the NJS runs completely. After all, if you have a contractor, it's much easier to say 'thanks we don't need you any more' when the contract is about to expire than if they're directly employed by you.