Thats exactly what the server hop addon is doing. It's mainly used by farmers, rare hunters, etc. You just randomly join parties on other servers.
Give it a try and then you will get an idea how it works! It's pretty simple. Been using it now for the past days to farm certain overcrowded spots. Also need to make sure that you got the grouploot plugin installed and active, since you may need to roll on some items. (I may add it's own support for it later.)
2face got a reaction from BetterSister in Realm Hop