I’d be interested in doing this, and most of my guild has expressed a similar interest. City raids are our thing, and people go pretty mental over them on the ruleset.
I did a stint on an RP-PvP server in Wrath and it was some of the most enthusiastic guild-vs-guild fighting I’ve ever seen in WoW.
When people are more invested in their character and the world, they’re more invested in showing up to fight over it.