One feature I noticed that didn't get talked about is the new cliff notes for dungeon journals. They have detailed version ofc but also a much simpler version. Here's an example of the most complex (ability wise) boss I could find:
Imperator Mar'gok (final boss of Highmaul) cliff notes version
Dps: Arcane Wrath spreads to nearby allies
Destructive Resonance (which has a tag) will inflict destructive resonance if triggered.
Arcane Aberrations inflict heavy raid wide damage as long as they are alive
Healers: Arcane Wrath inflicts heavy damage when it expires from a target.
Arcane aberrations inflict heavy raid wide damage every second they are alive
Force nova inflicts heavy damage to players as it moves over them.
Tanks: Accelerated Assault will stack until Imperator attacks a Different target.
Mark of Chaos will inflict damage to allies within 35 yards when it expires (idk why this is under tanks, probably placeholder)
Imperator Mar'gok will periodically summon Arcane Aberrations.
His main entry has over 30 tabs for different abilities. (Technically they are all modifiers to his main attacks + a few adds, very interesting fight, but still.)
Big improvement IMO.