Rumors of the S7... it's so much fun waiting for rumors of the next big thing to come out... but right now they are just that rumors. If you really listen to the AC Podcast you might have heard Phil say a very small comment on those rumors recently... they are rumors. It really doesn't sound like even they believe it will come out that soon. Seriously, if you want a new stock Nexus that will get updates quickly then there is the 6P... probably the best phone out in the market right now.
If you want to wait around for a rumored phone... Jan, Feb... more likely a few months later... and this will have all the Samsung bloat, plus all the carrier bloat added in... very little of which you can uninstall, maybe deactivate at best... personally, I've been there, done that... no thanks.
But if that's you, by all means go ahead and wait for that phone... bloat and all.