Starting at reboot (maybe earlier, but don't count on it) you should be able
to build a second society room for an already existing ss+.
This can be used to have multiple training/joining rooms on multiple
continents, or to "save" a ss+ from a dying city. Or just for convenience.
The cost to build a society room is now 500,000 down from 2M. The remaining
1,500,000 gold will be taken from your bank account if you make a new ss+, but
not if you're working with an existing one. Only guildmasters can add a second
room.
Please lemme know if this bugs or otherwise doesn't work after reboot.