Art assets must giganormous and exceptionally varied, meaning we should see very little texture repetition throughout the game...and the heavy use of ram indicates they'll be doing a lot of texture preloading--which is fine by me as I'm in favor of any game that actually makes better use of my eight gigs...;)
One thing that encourages me about this game is that it really has not been overly promoted. Quarterly updates just to keep the game's name in the public venue are fine...it's the games that get splashed in our faces every other day that we have to watch with a great deal of skepticism until shipping day (eg, Diablo3, which I did not buy and never will because of its ridiculous always-on-line requirement made necessary by the game's design--40% client-side, 60% server-side(?) Horrors...What a disappointment that game turned out to be. Torchlight II, otoh, is tons of fun.)
This game has the potential to break like another Skyrim--if the game is just 75% as good as it looks...especially if it is released into a competitive vacuum. Hopefully Irrational has underplayed its cards so far as opposed to overplaying them!
It is well known that I do not make mistakes--so if you should happen across a mistake in anything I have written, be assured that I did not write it!