That is honestly i great idea.
That sounds awesome. Also what if you start in like the east ocean and can buy maps to the north,south,and west oceans. Some where you might find a nether portal and mabye a end portal.
If anyone wants to give any ideas of how this could become more organized feel free. i think this could become a great gamemode if enough effort was put into it.
I honestly understand what your saying. but honestly why make two hubs? if this is such a major problem just cover the hub in snow. Tons of other bigger servers have just christmas hubs.