@takayamasama: You're already in (welcome again!) but I'll still answer for everyone's benefit- I'm EST and I think a few others are as well, the server is CST so just an hour behind us- I'll usually schedule things for server time just to keep things simple.
@shivermetimbers: I think most everyone at this point is 100+, the pre-expansion event included a really nice opportunity at leveling characters quickly which helped people catch up most of their alts. We do have one other person currently leveling from scratch and a couple others somewhere on the spectrum so I wouldn't count it out completely. And there's always the LFG tool for dungeons and such.
PvP: Nothing guild organized, we're pretty PvE oriented. There's nothing to stop folks within the guild from organizing something on their own though, I could set up a dedicated channel for it in the Discord if there's interest.