Originally Posted by LordGek
These new mechanics, I believe only in the new IAP Dark Pharaoh Campaign, are pretty clever.
The most notable thing about these additions is that they are a basic part of the physical board game, and were initially left out of this version specifically because FFG weren't sure all the fiddly bits would play so well for the digital audience, and because it gave the developers less stuff to have to keep track of for the initial release. I think FFG realised early on just how much they underestimated the players in this regard, though.
The only major feature left in the physical game that doesn't exist in this version is the ability to fight and kill the Ancient One if it wakes up, but people generally seem to agree that this leaving this out isn't a great loss, and is probably preferable from a lore standpoint. ES:O
does deal with this in its own way by including "boss battles" of a sort in the expansion campaigns, anyway.