They might need to free up cap, so maybe they might let him go early for less $$
I doubt it, they wouldn't sign Capes after AFB committed for another year if they couldn't afford him. You don't try force out a player like him.
Like MrDavid said too, hard to be quick when you have to negotiate a player to go back their way.
Quickest would be something like BHU entering negotiations with them and they just take that as as good as a trade.
If they want to try get a trade of a junior thrown in to find someone we'd agree to and who would also agree could be quite a long process.
If BHU did want to sign with them there may be an opportunity for a preseason swap as both clubs should be able to afford he players. And BHUs bro was living with him has gone to England now so he's out of the house. Braden may have zero interest in signing with Warriors of course, although they have all of AFBs money to try and convince him otherwise.
If they still wanted a 'trade' junior to finalise things it'd probably be up to AFB to agitate enough they give up.