Quoted from unigroove:
I talked to Jack about this about 2 weeks ago and he said they will reveal the game when the time is right. He's happy he didn't take any pre-orders for it and that he didn't announce a date when it would be ready.
I'm very glad Jack didn't take preorder money this time. He can focus on anything else rather than the money coming and going based on an individual's circumstances. I can imagine that being very consuming in its own right!