BitShares Play and BitShares Music are coming out sometime.. BitShares ME might also be on the horizon.
Most of the devs are probably focused on BitShares X atm.. And after that BitShares DNS and Vote will be the focus for some time, before BitShares Play, BitShares Music and then I guess eventually BitShares Me launches.
When BitShares X makes everyone rich and the team are a trusted source of expertise I think we will see some big bounties and initiatives, e.g. hackathons conferences etc, to kick-start and incubate innumerable projects.