After noticing some user experience similarities between Linden Lab's Sansar (at least from what we know so far) and Blue Mars, the now-defunct virtual world from 6-7 years back, I went through old screenshots of the Blue Mars blog I helped put together as a consultant, along with NWN veteran Iris Ophelia. Maybe it's just me, but looking at them and the avatars in the Sansar teaser definitely gives me a sense of deja blue. (See what I did there?)
Sansar avatars above -- compare and contrast with some Blue Mars avatars below:
Again, could just be my bias, but they seem pretty interchangeable -- sorta replicant-like and plasticine, while also seeming both multi-racial/post-racial and generic? Can't quite put my finger on it.