To be honest, even though my main interest in the MS world has been Hyper-V and associated technologies, I’ve avoided Remote Desktop Services VDI. There might be lots of interest but I reckon the cost of it (hardware, licensing, more management systems rather than less) will scare most of that away (and this goes for all the vendors, not just MS).
RemoteFX has stirred up a lot of interest. Here’s a link to a blog post talking about the requirements to get RemoteFX up and running.