Could it be possible to make an remastered Arcanum using the Pillars of Eternity 2 engine, I think Sierra owns the IP, but with Microsoft buying the IP from them... Its good food for thought though...
Traits are great because it personalizes and enhances experience for each player. So is there going to be a trait system like New Vegas had? For example the Four Eyes trait or the Wild Wasteland trait? Or even deeper than those example and add traits that NPCs will comment on? It could be great