Basically, I also think that MED is fine as is, concerning features. There could really be more, but there don't necessarily have to be. What MED seriously needs though are workflow improvements (see my previous post)! I regard the following as absolutely necessary:
- Depth test for polygon/vertex selection
- Adjustable vertex click radius, or at least a bigger one than is currently implemented
- A working undo-function! The current one often randomly stops working o_O
- Automap-methods; these are planned anyway, according to the forecast
- Camera movement like in WED! Currently, MED doesn't even know of the third mouse button / wheel O_O

Just my two cents, as always.
May we have a response from Conitec?