I don't see anything significant there over the old NEX6 I recently brought. Yes it's better but I shoot adapted lenses so AF is irrelevant, I don't shoot video, the extra MP is probably wasted, so the extra $700 probably would be too. Yes older gear is now preferable for me
I sure there are changes mot easily listed in specs. that would be useful to me but an A7 is more tempting. I have to admit I'm liking the NEX6 more than I expected, the plan is to convert it to IR, but I can see that being delayed for quite a while while I play with it with visual light.