Disappointing, I was expecting at least a hundred by now.
Probably played less than 5.
Might be able to get an hour in tonight, so...
A Nephalem class, who can tap into both angelic and demonic heritage, wielding both the power of light and dark.
My guess is we'll get to play as one of the angels of heaven. Which would include the holy magic element without actually being just a Pally or whatever.
Addressing these in one go, I'm really not fond of the idea of an angel or nephalem class.
The problem with the angel is that a) it should be much more powerful than every other class, and b) it would really take away from the themes of the game. The Wanderer is a smuck that happens to be at the right/wrong place at the right/wrong time, and there's something to be said for a human challenging Lilith (and Inarius to an extent) in the context of D4 and the wider lore. Having an angel take down Lilith for instance really doesn't fit thematically.
A nephalem class would mitigate this somewhat, but it's still jarring. In D3, every class was a nephalem, so why is a nephalem its own class in D4? And if it
is its own class, a nephalem should wipe the floor with every other class. I know Diablo's often had this ludonarrative disonance (that D3 actually fixes IMO, given that the deeds of the PC are justified), but that aside, there seems a reluctance from Blizzard to even use the word "nephalem" these days, instead using the term Firstborn/Ancients (which are just the first nephalem generation, I think, sort of, maybe, gah!)
Anyway, TL, DR, not fond of angels or nephalem being playable characters, at least in D4 specifically.
I was rather surprised we never got to fight Diablo himself. I mean I knew Lilith was gonna be the main baddie here, but I was expecting at the very least hidden boss fight. His name is the name of the franchise, ffs!
I'll be honest, I don't see the need for Diablo to be the big bad of every Diablo game, even if that's thus far occurred sans Immortal and D4 (and even then he'll probably be fought in both). I mean, "Diablo" simply translates as "devil," and there's no shortage of demons to slay in the series.
I also feel like Inarius isn't quite dead. The way he "died" and how Lilith said "You belong in hell!" makes me think he'll be a boss fight if the expansion were to happen. Something like Izual from D2, but much stronger and in corrupted state, his attacks now having a demonic theme going on.
My opinion could change, but I really don't see the need to kill Inarius. We've already fought and killed Izual twice, we've fought Malthael and the Reapers, we've fought Shaddox in Immortal, having a corrupted angel as a villain isn't new at this point. And given that Inarius is a narcicistic git, his ignomious end is quite fitting.