Well RT was designed back in their not listening to anyone phaseGiven the recent outbreaks of seeming sanity, it could be interesting to see what they'd do if they did a RT2, but no real signs of that?
Talking about Windows RT or about Surface RT? If you mean latter, there is the Surface 2, running Windows RT 8.1.
There is nothing inherently wrong with Windows RT, as it provides the full functionality of Windows.
What I was talking about was the signature enforcement for desktop programs, which is purely artificial. This prevents any desktop program from starting, with the exception of Microsoft signed executables as for instance Office, Outlook, PowerShell, Paint, Wordpad etc.
With Windows RT 8.0 there was a hack to circumvent this restriction, but Microsoft closed the hole with the 8.1 update.
Why does it hurt them, if someone is developing desktop programs for RT? Managed .Net 4.0/4.5 would even directly run without recompilation. And there is a C# compiler directly on the device. Isn't it funny, I can develop and compile C# .Net programs on the Surface, but can only execute them on my x86 PC?
