We do have a spoiler talk thread for the show, so please use that for talking about spoilers from now on. As for Moff Gideon being Hask, that would be awesome. I would have loved to see Paul Blackthorne be the "big bad" of the show seeing as he would still be alive at this time I believe (I may actually be wrong about this, but I don't think so).
Sorry about that, I just haven't made many friends or many nice acquaintances here so I'm not very eager to comment on a lot of other threads.
He's still alive, Hask is around during the early years of the FO even. But he's probably too busy with Imperial business to care much about a rogue bounty hunter.