Pretty unimpressed with the Warlock changes which for Destruction and Demonology are practically non existent.
And other changes are making it worse like…
“All Demons now take 6 seconds to cast” 
I know it’s still early but I’m not excited at all for the Warlock class right now.
Blizzard devs need to go to the Warlock forum and especially check this thread out.
Shadowlands Compiled Feedback Thread
Now the Unholy Death Knight has got me more excited as it seems more like a Necromancer class then ever before.