He's doing tracks everyday, they could be for anything, but a lot is going to happen before he releases another solo album.
Slaughterhouse album on Shady
50 album
Detox
D12 album
Cashis project/album
could all happen before he releases another solo album. He also gave us 2 albums in 2 years, so don't expect one every year just cause of that.
Plus, spending time with his kids is what he wants to focus on as well.