Should i switch to iphone 6s or wait?

I have iphone 6 and i was wondering does it worth swithing to iphone 6s or i should wait till 7 or whatever it's called. What do you guys think?

Definitely wait! I've heard it is coming in september and as the iPhone 6 is still pretty new, i wouldn't buy another, even if you are rich

There's no enough difference between the 6 and 6s to justify the cost. Wait until the 7 comes out in September.

If what the 6s has over the 6 is worth it to you, then yes.
If not, wait for the 7.