https://www.wowhead.com/diablo-4/news/diablo-4-season-1-developer-update-liveblog-333849
Breakdown of the stream announcements.
I'm not saying I'm underwhelmed, but there's a part of me that wish they touched up the endgame more. There's a lot of potential and I feel like they've had AMPLE feedback from the community. World bosses still don't feel worth it. Nightmare Dungeons have been buffed, but still feel fairly mid. There's no increased incentive/reward to push higher keys aside from keeping the mob level in line with yours. Helltides getting buffed is nice, but almost feels meaningless without WT5.