That's not going to happen any time soon. Not because they don't want to but because the whole process would be monumentally complicated and expensive.
I suspect we'll see a new 100% managed code IDE in the next 3-5 years that will fit this area nicely. It'll have bits of Visual Studio in it and it may even be called Visual Studio but it won't be what we have now.
Are you confusing "Visual Studio 2015 ... uilding applications that run on platforms including Windows, Linux, iOS and Android." with "Visual Studio 2015 will run on"?
I was confusing "cross-platform" with "runs on", yeah. I thought that as Ars says Visual Studio is cross platform, that it would mean it runs on multiple platforms. A closer read indicates that may not be true.
I suspect we'll see a new 100% managed code IDE in the next 3-5 years that will fit this area nicely. It'll have bits of Visual Studio in it and it may even be called Visual Studio but it won't be what we have now.