I am going to have to request that issues and code contributions be refiled at Winehq for those who still care about them. I have enough on my plate just getting things up and running in their new home, along with my other duties at CodeWeavers, and I don't have the bandwidth to sort through that whole backlog.
libgdiplus does, as it's a Mono (class library) dependency. So do any submodules. But I don't think we can handle separate projects like MonoDevelop, unless they're important for some reason.
God damn, I've got a LOT of music software I still keep Windows for. Cubase and Native Instruments mostly, and there's not a chance in hell they'll ever release Linux versions