remember that futuristic city-themed DM map in Unreal/UT99? they even made a UT2004 version with different modes (CTF, BR, DOM, DM, INV, etc...) i liked it so much, i think it would be a really good addition to UT3!
yes a convert of the map is kinda good, but what would be the best is a whole remake of the map.
sure it's fine to start from something converted from UT2K4 and rework everything, but i wouldn't play a quick-convert of the UT2K4 though.
Yeah... thinking about it. I wouldn't recommend anyone porting the original Zeitkind. As great as the original was in GOTY, by today's standards it's a contiguous subtraction-brush nightmare. Better to be made from scratch, with improved flow for vehicles. It's a good foot map. Too cramped for flying vehicles though.