I think about a week. If no one's replied in that period consider it dropped? But because loose ends are hideous, open a discussion post on the ooc page, maybe? to discuss what happens.
As for Dick 2.0? mmm he needs income and somewhere to live. But I believe he'll be moving into Dick 1.0's Gotham apartment once he's moved back to the 'haven, so that's solved. There's an open invitation to the Tims and Dicks of the world, also. I'll probably have him work in a gym a la BONES. And he'll be helping spray paint Dick 1.0's car, plus slowly building/buying parts for a suped up Ducati motorcycle of his own.