I think uploading the RAAM route with time stations that you could select would be a dream come true for a lot of cyclists, not to mention publicity for the race and inspire many people! So many different landscapes!
As Zwift is a globally used application and surely meant to be, I would like to be a bit more open minded.
There are many courses all over the world that could be used to the same effect of publicity and inspiration.
However, I think that all courses should be in Watopia, even Richmond.
So that one can be dropped in Watopia and then has a short ride (consider it a warm-up) take the correct turn,say, to Richmond or a Velodrome or the Mountain route or anything else like a dirt Track for example (short cut to event).
So instead of all different modes or settings, all would be in the same world accessible by bike. (maybe there could be a app to pump up my tyres ;o] )