Idk!
I have the 6 and my contract ends this month. I was initially gonna stay with this phone, but change carriers because AT&T is too damn much. Plus I wanna save for the new MacBook Pro. But I dropped my phone on Tuesday.. the bottom left is a little cracked. It isn't so bad, but it pisses me off. I wouldn't mind the 6s because I hate the whole no earphone jack mess. So yeah, iduno!
Part of my phone plan is that I pay $50 a month, and after 12 months, I get to get the latest iPhone - so yes, I will be getting the 7+. Hopefully soon, I hope they don't run out of stock this weekend.