1 Newtonian physics
2 wave weapons IE: you know like in metriod, the wave beam jumps up and down? I want that in freespace
3 Distortion shaders dang it!
4 waypoint paths that don't change orientation
Ok, thinking about how to put this in on the page, and I'm stymied, a bit.
For #1 - I'll let the devs tackle the response to that one - but I've seen several places where they've said that would require an almost-total engine rewrite.
For #2, again, wouldn't that be an animation, not a code request?
For #3, I'll probably add that - but, I'd like a little more info than you gave about it. If you look at the features request list, there's usually a bit of info to go along with them, to detail what, exactly, you want accomplished, and for what reason. If the request is vague, the response will be too, most likely.
Same for #4. Give me some more information about your request, please?
Actually, let me tell you what. I'll post a format for feature requests, so that we have a specific way to ask for things like this - and it will include detail about what you want it for, and what mod it's for - even if it's a personal project, etc.