I try to lobby chadz, as it is absolutly no fun playing on foreign servers. And I think anyone who (really) played strategus knows, a war between a big EU and NA faction is unlikely to happen because it's just frustrating, making 1/3 of the current map "unused".
People that are concerned that the community will be split, well, it already is, I know nearly nothing about the NA playerbase, and you can't tell me you participate much on the other side of the pond (tournaments for example, clan battles and such).
My current idea would be:
2 calradias, players can chose on which they spawn, and freely travel between them with ships.
EU continent forces EU server and has EU-nighttime(no battles, less speed on the map), NA continent the NA server and NA-nighttime. If you are a masochistic one, you are free to play on the other continent, but you won't be able to force your server on them.
If you have a mixed clan, you either take coastal regions on both continents, or a part of your playerbase has to suck it up and always play on foreign server. Not that different from the current situation, if you currently have 50% NA and 50% EU players, 50% of your players always fight on the wrong server anyways.