Note 4 specs have me not seeing much reason to upgrade. NSA, U.S.G., and carrer iq stuffs have me thinking my next phone is going to be one a little less tampered with.
I don't like what they did with note 4's screen either(like the s3's) if you set it face down it's sitting on the glass. Note edge I can imagine a lot of these getting broken.
When it comes down to it though, I'll upgrade when phones mirror 4k screens or when theres a min of 50% more processing power.