A /visor option for more headgear would be nice. I don't like the mandatory face mask on the Iga Zukin, and I'd have expected toggles from more goggles. I like the level 1 weapon skin idea a lot, too.
As for more modern/futuristic clothing, it's not outside the realm of possibility -- look at the stuff Alphinaud has been wearing since his introduction. His jacket-thing has a hood attached, although he rarely uses it. It's basically a hoodie. If that's the fashion in Sharlayan, then who's to say we won't see more of it?
Don't forget, it's also very likely we'll see some FFXV collaboration event at some point. It's a safe bet that Noctis and Luna's outfits will be available, just like Lightning and Snow's were for the FFXIII events.
