My main fears about this game are :
1. Loss of max HP when you die. Playing with minimum HP is presumably difficult, and you risk being stuck doing that because of point 2.
2. Finite amount of humanity available.
3. More enemies with limited respawn.
I think Dark Souls actually did the good thing compared to Demon's Souls. In Demon's Souls you were sort of supposed to play as ghost all the time, because you had to kill a goddamn boss to get your life back. Humanity in Dark Souls was much easier to come by (even though I didn't use it much, offline master race), and that was a good thing. Now, in Demon's Souls the game was not too hard to play as ghost so it was okay to never be alive, but it sounds like in Dark Souls 2 playing as hollow gets really hard if you die too much. It sounds like if you have a streak of bad luck or just explore as much as possible you can fuck your game up pretty bad.