I wish they would dedicate more time to improving cl.exe and link.exe in terms of performance and language support and less time with these hokey team visualization gimics. Every release since 2008 has been getting slower and slower for C++, the C compiler is awful, PGO instrumentation in Win8 is less capable, and there's no equivalents in the Windows ecosystem to gcc's likely/unlikely, oprofile, or valgrind. It's at…
Personally I would like to see proper C++11 support instead of playing around with C++/CX and while they are at it, either provide a native compiler for .NET or improve NGEN's optimizer for C++ performance level.
Given that Microsoft had .NET native compilers for Singularity and Windows Phone 8 .NET apps are compiled to native code, it isn't as if they don't have the tooling already available.