He's waited this long so there's no reason for him not to wait it out for another 8 weeks to see what materialises before signing another deal here. Things can move fast in the window, players can get injured in pre-season or on internationals so someone may need him.
My guess is with him being 29 in October that nobody is going to offer the kind of sum to make us consider selling him. I'm sure plenty of clubs will offer him a 3 year deal next year but an upfront fee and 4 year deal now? I can't see it.
I'm 95% sure he's here next season at least.