In regards to your raid question this was earlier in the PC Road Map thread
Why is Apocalypse a terminal boss? He is a raid-caliber boss.
Apocalypse is powerful enough in the lore to be require a raid to fight, but a terminal is what we can deliver this year. I'm actually having a hard time giving a concise answer to this. Raids aren't dead - we'll do more of them down the road. None of the content pieces we have planned are as big as the Surtur raid though because something like that takes a really really long time to make. Right now I am favoring a steady cadence of things rather than waiting a year for one massive addition