Holding the main tournament for the portal(s) (at least, that's how it's positioned) on a version that hasn't been thoroughly tested in online and offline tournaments... is, to say the least, a questionable decision.
But these are just words, of course, no one will hold a tournament of this level on an untested platform. But something tells me that the votes in the CIS 2015 will be divided approximately 60% Sod, 25% Hota, and 15% VT, but we'll see...