I think something that would help the game would be a server selector.
Once you have your crew ready to sail and spawn in the tavern you see a list of the server showing how many pirates there are. You then choose one of them and your crew starts the game in that server.
Something like:
Server 1: 20/20 (unavailable)
Server 2: 19/20 (unavailable, your crew is too big)
Server 3: 20/20 (unavailable)
Server 4: 15/20 (join)
Server 5: 00/20 (join)
Server 6: 10/20 (join)
Server 7: 03/20 (join)
Server 8: 20/20 (unavailable)
Well, just an idea.
