What would improve Neocron the most?

[Agent L]

1) New Models, that look much more like the old ones (Private Eyes with sunglasses, Spys with Visors, Monks with Trenchcoats, Tanks with strong body). And those should again be colourable of course.

2. Reimplement NC1 character models. Update them with higher poly counts and higher res textures if you're feeling fancy, since that's just about the only flimsy excuse anyone has to not support the idea.

Exactly.
For me, it doesn't even have to be a new model. I'd be more than happy to just look like an adult in this supposedly adult-targeted game.
Most of us play NC because of sentiment, so give it to us.