I would hope it could be moved not only to Git, but to Github specifically (obviously only the open-source parts) because it could really be a boon for the game's development. Github has a great community of coders and with Pull Requests, getting help on development takes minimal effort on the part of the project manager(s) -- just look over the PRs that are submitted and if they're good enough, hit a button to merge them in.
So I would say the binaries of the closed-source parts should be distributed in the Github repo, and developed as a separate project with, say, Bitbucket (because they allow you to host private Git projects for free whereas Github would charge for that).
I feel very strongly about this so I would love to see this happen. Also, Github has the ability to host binary downloads like SourceForge, as well as static web pages and/or a Jekyll blog for the project, if that matters.