Just to play devils advocate here.. it appears to have 3 of those 4 things.. although I suspect by much better you mean like days.. like physics bending better?
I don't actually think this is designed to attract S8 owners anyway, beyond early adopters.. I mean Apple have done just fine with a tick/tock kind of thing and as I've said before.. where do you go with all screen?
Similar to cars, at the start there was all sorts of crazy then it settled down to the basic shape and layout we've had for 50+ years.
I'm afraid we're near there with phones.. they're glas and aluminium slabs running 1 of 2 operating systems so scrap it out for incremental bumps in camera quality and nonsense like siri/bixby/animoji etc
Yeah, phones have all but plateaued really. In the early years every new phone that came out was radically different from each other. From bricks, to much smaller with telescopic aerials, to stubby aerials, to no aerials, to fliphones, clam phones, slider phones, etc. Each new phone that came out actually did make the previous phone seem really dated. Not anymore though.
A standard of technology and form factor was reached a few years ago and remains today where every phone is a basically a flat rectangular pocket computer, all able to perform the same functions, and do them really well. Nothing wrong with that, it's evolved to something we all love to use. But it's now just a case of diminishing returns isn't it? For every new iteration of a Samsung or iPhone, it's a case of "we've added half a dozen new features, one or two of which might be useful to you because the others are gimmicks so we can persuade you to keep spending money, improved the battery life a bit but it'll still die sooner than you want, improved the screen resolution but you won't really notice the difference from our last phone, and added slow motion video and humorous face animations that you'll use once, maybe twice. That'll be £800 please. kthnxbai."
I've got a beautiful platinum gold S6 in almost perfect condition in my drawer doing nothing much and I'm using my metallic blue S7 Edge for everyday use. If I lost the S7 and went back to the S6, I would hardly miss the S7 because to me the S6 is nowhere near dated and still a pleasure to use. I can even make phone calls on it which is a real bonus. Next year at the renewal of my contract, I think I'm going SIM only and will no doubt continue to use my S7.