I don't think CCM will pay the Nix, but someone has to be paying WeeMac and it should be CCM as he is their player and his loan was finished, so they wanted him, they can pay him. I'd guess in good spirit he'll pay the Nix back for paying him during this time though.
It's messy. CCM can say that they didn't agree to terminate the loan and so don't have to pay him before Jan 1. Yes, that would be a completely wankery thing to do. I can't see us being reimbursed.
I think that's likely. When they took on Ibini to replace Weemac they would have needed weemacs loan agreement to say he could not come back before the loan expired, otherwise they'd go over the cap. Weemac may well be in no man's land for terminating the loan without their agreement. If his contract with CCM had terminated, as was thought at the time, then he would be fine; he leaves and signs with Nix. But now, if he is still held under his contract with CCM, he's in a spot of bother.
PFA may have boobed by jumping the gun ahead of seeing sufficient documentation to prove weemac was released from his contract, or PFA have been misinformed by FFA.