edit: I think what's throwing the anti-trolls in here is the fact that you have named your topic "dated and needs refreshed badly." The only thing I think is dated and needs refreshed badly is shado's pe- er...wait, this isn't the conference room
ON TOPIC:
1. Don't know why you'd get so worked up over a door handle. Don't like 'em? Shave 'em. Done. For most of us, they're just fine. (Hell, if they stick out like a sore thumb to you, color match them, and voila! It's like camouflage. Vinyl wrap if you want to ever return to stock)
2. Fangs are iconic to the 370Z now, whether we like them or not. You're the first person I've heard who actually wants Nissan to openly get rid of them. Then again, I don't really wander around looking for things about the fangs anymore...my body kit got rid of them. Meh? Again, don't like them? Wrap the thing in black vinyl, and it almost disappears. It'll still be OEM when you rip the vinyl off. As others mentioned, you can also get a kit, and keep your front bumper if you want to sell as OEM again later on. I dunno what your intentions are, so that's just a few options for ya.
3. It's loud in the cabin, but I bought the car expected it to be loud. It's the same old flame war we get, why would you want to sound proof an out-and-out sports car? Just adds unnecessary weight, and most of us like it, or have become accustomed to the road noises, etc. Especially with test pipes or aftermarket exhausts, underneath the car is WHOOOOOOOO*pshhhhhh*
Still, Bluetooth works, I can hear my music playing...good enough!
4. What's so overbearing around the lights? It's not like the Maxima or anything that looks like a sideways U. I rather thing the headlights and taillights look rather sharp on the Z. Breaks the lines quite well, imo. I just painted mine so it fit in the overall motif of the car, but on most cars I'd suggest leaving it alone.
5. You can't be serious about wanting a hybrid Z already. It's not going to happen for a while. Even if it does, it's not going to be a sports car anymore, I don't think Nissan has invested in the tech to pump out anything close to...say, Porsche's electric sports car. In the worst scenario, it'd be a Nissan Z in name, but like the Honda CRZ in execution; overweight, bloated, piece of junk that's 'supposed to be a sports car', but in practice isn't.
tl;dr version -
By your line of thinking, you'll never buy a car again. You'll keep thinking "...but they MIGHT do something next year to redesign!"
The Z is still a new car, it won't do more than a minor change. If you like the car, get it. If not, don't. If a minor refresh DOES come around you like it, buy it then. But you can't keep second guessing something from the companies, or you'll end up with nothing. Or at least, an old Honda that lost its soul sometime when the Integra disappeared.