just add better spawn points to the maps we have.. problem salved ?
beats trying to get new maps approved for the game. is this possible? 
The original creator of the map has the source files and has to add/alter anything about the terrain. Then it needs to pass the Terrain Editor checks and then final approval by HTC.
you can send a map, 2 weeks for validation 
Depending on the size and complexity of the map, and the workload at HTC, it could take more or less time. But, once the terrain passes the Terrain Editor checks, you can upload it for use in Custom Arenas without HTC involvement. Then everyone can see it and use it in custom arenas (or offline once it's downloaded locally).