It will be i200.
Labyrinth of the Ancients was i80, released when i90 armour was king.
Syrcus Tower was i100, released when i110 armour was king.
World of Darkness was i120, released when i130 armour was king.
I severely doubt they will change their basic strategy that much. But, keep in mind, for those that aren't doing Alexander Savage. Esoteric gear is upgradeable, Void Ark gear more than like will not be. So if they add an alternate way to get upgrade items for esoteric gear in 3.1 as well, than i210 esoteric will still make Void Ark gear either glamour gear or placeholder gear until you get the upgrade item for esoteric. And higher level alt job gear, lol.