To start off I quit playing a few weeks after the world stone events were released and I just started again about a week and a half ago and I'm trying to catch up on all the updated content I missed.

So as far as I know since the world stone event
The crucible has been added
There are more inferno areas 1 in A2,A3,A5
The lich king
2 rare puzzle boxes drop from anywhere in hell but I'm not sure what happens when u open one
Ryle caches are opened with a council key I think but I don't know where they drop
If I have missed anything plz let me know what.

I currently have an ik shield throw barb who seems to do well for inferno areas and all of dreamland except mappo.
I also have a tals orb sorc for he'll cows/frags/keys.

I'm wondering which class build/gear setup is best for mappo/lich king/world stone bosses/belial and crucible but I am not sure if crucibe is soloable.