Following today's Compiz Conference Call, it has been decided that both Compiz++ and Nomad (another branch of Compiz) will be merged back into Compiz. After the release of Compiz 0.8, Compiz++ will be merged in and then released in as Compiz 0.9.0. Following that, Nomad will then be merged into Compiz. After both mergers have been completed there will then be a period of bug fixing.
These details were shared on the Compiz mailing list.