[quote=@Plank Sinatra]
So what's the status on things that Angel brings into the canon? Do Wolfram & Hart or TPTB have any particular sway on the world at this point, etc etc.?
[/quote]

Wolfram & Hart have the same sway they had prior to Angel, which is a lot. 

TPTB always have sway; it's in the very name. Considering the "reset" didn't result in a hellverse, the Watchers postulate from that fact as evidence that TPTB may have been behind it. They know, mostly from Giles work, that reality was "tweaked"--they're just unsure how exactly and to what consequence. And if not them, something as powerful, or hard as it may be to imagine, something yet more powerful. Whatever the power level, something not inherently evil.

So, yeah, both of those elements of the universe are still factors.

Anything else Angel brought into the universe, and you'll need to ask specifically. (Like with TPTB and Wolfram & Hart.)