[Suggestion] Instanced Casual PvP Wargames

I'd definitely love some L2 Olympiad-style arena ladder (and the current arena might be quite similar to that) with its own rewards and stuff, but those wouldn't be casual at all and I'd personally like them to be a "later update" thing, so that it adds more content for the people who've maxxed out all the things they wanted to max out and became a bit tired of caravan pvp.