I don’t take the Ubisoft stuff too seriously - Ubisoft has never seen a shiny new thing they won’t give a shot and then abandon completely (is JGL still getting people to work for free or on spec for Beyond Good and Evil 2?)
I think that Blizzard’s experience with the real money auction house is the guide post here - not worth it and doesn’t improve the game at all.
Of course game companies are companies and will, I assume, have to go through a cycle of trying all this stuff for themselves before realizing it makes no sense. Or, more likely, discovering that the rubes are into it 
