The iPhone 7 will not get a thinner bezel. I hear that for the iPhone 7 they will put the screen when the bezel is now and the bezel where the screen is now. So it will be solid in the center and screen surrounding it. If this interests you wait for the iPhone 7.
Post like this begs for attention. I am feeling generous this evening.
My recommendation would be; get a samsung note 4.
Wait for the i7. Then 3 weeks after the launch review your options and seek advice if you should get an i7 or wait for the i9.