Yeah, it's hard to say for sure, until we get all the details & pricing to make any thoughts out of that.
However technologies move further & for sure that is going to bring new levels on performance..but it seems nVidia understood how their products are used & raising prices of GTX line, branching as Titans & offering them as entry level compute cards. Mentioned in "Second look at Titan Z" that my guess "is that we are going to see three segments [instead of two] in the future line of nVidia GPUs". Probably nVidia will try to do some crazy code optimizations for new cards to perform good on games, leaving pure performance to crunch numbers on cuda apps in different segment..Still kind of surpriced how cards like Titan Z is still branded as Gamer cards - who on earth buy 3000$ for gaming? (though read that sale figures where better than expected).