Sorry, I'm too new to knew your work well. Good luck with your engine!
I like Brimstone's idea. I love the BattleZone remake. Anything related to vehicles would be nice. Like getting in and out of one. Also close first person combat would be nice.

I wanted to save my 50th post for something specail.

Check out my site http://foxzero.net
My band's website
http://wolf-hybrid.net

R.I.P. Dave Williams