I can't see a phone getting thinner because it will compromise both the strength of a phone this large and the battery.I was also wondering if it's too early to think about iPhone 7 ever since the release of 6s/6s+. I have a 6 Plus which works fine for me and while I wouldn't say no to the upgrades the S cycle brought, my current phone is working too well for me to justify forking out near a grand for another phone. My biggest interest is in cosmetics, which was also another reason for not purchasing 6s/6s+.
I did hear rumors about the iPhone 7 being as thin as current iPod touch lines. Some speculate that 3D touch is Apple laying down the foundation for the removal of home button for better screen to body ratio (less bezel would be nice... 6+ feels a little too big sometimes and I have fairly large hands).
Other things I'd like to see:
better screen resolution for plus model (stop downscaling please)
no antenna bands unless they intended it as part of the design..?
no protruding camera
But to be honest, since this year's S upgrade was so huge, I wouldn't mind a slightly upgraded iPhone 6s/6s+ with a brand new design for iPhone 7. I hope it's going to have a nice design/really good update, or else I'm probably going more affordable route and buy a 6s+ off swappa when/if my 6+ quits on me.
I do agree I'd love to see thinner bezels and a better screen.
Personally I like the upgrade programs. I used to pay extra for a one-year contract on Verizon but they eliminated those a few years back. My phones usually run flawlessly the first year then start to get some minor issues and I get tired of them in year two. Now, for the same price I can upgrade every year again.