Ok, the terror zone I've been waiting for, WSK. Big question is Baal still capped. The answer is yes, and in fact, a terrorized Baal doesn't give you any extra experience.
Killed him once at p/8 and once at p/3. I actually got 99 more experience points at p/3! as a TZ Baal dropped 127,332 on P/8 and 127,432 experience on p/3 to a level 95 character. I immediately did another Baal run once the TZ had shifted and Baal gave me 127,332.
So, the rest of the WSK and the minion waves do drop a lot more experience than normal. One full clear of levels 2 and 3 and a second short run to the doors, plus two sets of waves garnered me almost 10m.