I think it will be similar to "antenna-gate" where everyone got a bumper for free. Apple may find a cheapish metal band just to strengthen it that little bit. If they can even replicate the problem. I have a 6 and while a tiny bit paranoid, I'm not returning the phone over it. I've ordered a TPU case and a hard plastic case. They are cheap on eBay. Yeah ok, they are not high quality and you can get better ones, but it will strengthen it a bit more.
Theres cheap solutions or Apple may find something. If they do find something wrong, then they will fix it. Its so annoying how when something goes wrong with iPhone, the news and some people make it seem like these things are exclusive to iPhone and no other phone or anything like it does it.
Antenna-gate wasn't exclusive to iPhone 4.
"Bend-gate" isn't exclusive to 6/+.
Heres an idea. Carry round a 4.7/5.5 inch wide 6.9/7.1mm thick bit of aluminium in your pocket for the day. See what happens.