The first interest is to bring non-Microsoft users in the fold with the hopes that they may go 'This ain't so bad, maybe I'll give other stuff a try'. So if you've lived with Visual Studio for years, you know that it's been COM based for a looonnnnggg time (since inception). I have an even crazier suspicion about what VSCode is really about. Given that you can now enable language support for around 470-ish languages, I don't think that their game here is to be a replacement for anything. VSCode, albeit made by Microsoft, goes way beyond Microsoft's core interests. The next will be to begin bringing feature parity to the Mac version (My gut feeling is that VB.NET won't make the leap, but with Roslyn, maybe I'm wrong).
This is only the first step for Visual Studio Mac. If I had to really take a guess here, this is what I'd speculate.
