I think people get nervous he is gone purely on the basis that people rarely sign on post season. I think the Gaff situation is unique though as he is probably giving as much time as possible to judge his dads health, and the brayshaw incident would have delayed any contract stuff anyway.
Its interesting that basically every WA journo says 50/50 at worst, with many saying he is more likely to stay. Very different to say a lachie neale, where everyone believes he is gone.
I think its far from a certainty that gaff is gone
With the Lycett call now made plus Kelly up in the air Gaff may well also be holding out for a final offer $$$ wise.
His dad's health could also be a factor.