This would be a center where you start pvp games. It would be located of the blocked path next to the stranger who talks about gremlins. the Pvp dropdown could show events and leaderboards, but to sign up for a game of pvp, one would go there, and talk to a Krogmoligan (or something) who sit behind counters. they would be like little Krogmos. This would give a little more exploration and storyline. i like this idea better than just teleporting to the Kolloseum.
King Krogmo's Kastle
I think Haven needs to be expanded, it's too small. You should still be able to join PvP games wherever you are in Haven, but more places existing in real space would be nice.
I would say that's a good idea except for the acronym. There is a reason it's called King Krogmo's Colosseum and not Kolosseum.
And it could allow spectating on random games, possibly bets
The fundamental issue with having haven is that it takes up precious server power that could be far better used to MAKE ME STOP LAGGING! Trust me, it is almost never on my end. By introducing the "ready room", OOO has made a decision to steer people away from haven. It would be nice to have this as a bonus that you could check out every now and again, but I think that they could much better spend the programming time working on guildhalls and a new t3 boss.
Haven needs more places than just the bazaar, town square, and arcade. Though most people would complain that they have to press some keys to walk over there to play some pvp, which it will only take about 5 seconds to do.