I dont think that the UC should be killed, but the early years of it should be given a nice long rest. Let's see some stuff from later, like just pre or post F-91, (I'm still hoping for animated crossbone gundam). Heck lets see some stuff far into the future. I still maintain that a gaia gear movie or series would be kicking rad. Also if aliens were introduced into the UC I think they should be presented more like the moon race from turn a gundam. I.E. humans who have been cut off from the earth for an extended period, and have developed thair own culture, and government. Perhaps a far future story where the long forgotten Jupiter energy fleet returns home to earth.
Just a thought.