>Here I think you are wrong to group C# *compiled* code near to C++ (or Java, if you aim for syntax, brace style, garbage collection and intermediate code) - it still is closest to VB compiled IL code (at least when I checked, but that was before Roslyn...)

Thanks

>As you picked VB early on, I'd suggest a "Don't worry, be happy" mood as long as you also can decompile IL from VB code into corresponding C# code.
>You might have to fix a few lines, but nothing in comparison to a total rewrite in another language. And if you decide to switch over, you can do it module by module or in a huge step mode - as you wish.

Yes, I have a prototype of the framework in a C# code. It is not a total rewrite but several adjustments are required.