Maybe. I'd say if it Z97 supports Broadwell-K, there's no reason to not get a 9 series board. Of course, i'm a fan of selling prior generation parts in the right "time window" so I don't lose much of my investment. That way you can stay relatively up to date without a huge monetary loss.
I could see myself doing that and grabbing a Z97 board. Not sure if i'll go X99 though. Still mulling that one over. Maybe i'll make Z97 my HTPC (replacing my pentium G3220) and i'll replace a 4770k with an x799 platform for the desktop rig. Or maybe i'll throw my current HTPC G3220 and the H81 board into my desktop Cosmos II case. I'm cracking up thinking about that......(ridiculously tiny mobo, huge EATX case..)