I hope FH doesn't get dismantled or disolved (as on, FH is empty and over because everyone's on alternate servers if it goes fully open source). I mean, I practically just got here, it would suck to have to pack up and leave again as soon as I finished moving in. :/
I don't like the trnd of gaming all moving to FB and mobile platforms. I much prefer the client-based kind of game, like FH or SecondLife. I basically use my FB as a box to put my more unpleasant family members in so they can't mess with the rest of my life, and only open it when I absolutely must. Even if I made a separate FB account, I just really, really hate being on FB. It feels...icky. Feral Tails could be made of solid gold and cause your comp to spit out candy, and I wouldn't hang around on FB to play it. If it wound up in the android app store, and still wasn't one of those "free to play" games that make you pay actual money for random things you need for the game like most app store games, MAYBE, but I'll take an old client game over a new FB/app one any day.
If he decides not to come back even when Feral Tails is finished (if it ever really is. App management tends to be an on-going work) couldn't he just make the code "open" instead of open, as in give the coding the project files directly to current FH staff, and let them take over the work he doesn't even want to do, but under a license/contract/other agreement that restricts access to only active coding staff? Basically "hireH them to do it in his stead, kinda sorta? Name a successor, you might say? That way, we get updates, he gets FH off his back, and there aren't 1000 FH clones running around, because it's not actually opensourced. It's still secret source, he just let a few more eyeballs in on the secret.