I did A LOT of base editing. I probably designed 20 other bases aside from my own. I was known for my "weaving" of the spires...hundreds of them without flicker etc.
What I would like to have seen:
**The ability to make a danger room - complete with programmable NPCs that would fight you based on the level you choose.
**A message board: A chalk board/White board that messages could be left on for members (Similiar to the SG registrar interface...click and it would have date/time notes were left.
**A tailor that would have the SG costume saved...so all a person had to do was go..click on SG COSTUME..and boom they were decked out with all the right colors/designs etc.
**Actual doors...that could be opened based on specific permissions/users.
**The ability to increase the size of the entrance room
**A large teleporter (Think the raid teleporter) that could hold up to 8..12..or 16 beacons.
**More objects...I always thought that if it was in the game...it should have been available to be placed in base.
**Environmental objects...fog/mist/water/ etc
**A mission teleporter
**The ability to create a basement.
Here are a few tps I made for other people: