9 full final fantasy games and 3 shorter ones (I, II, III) were exhausted in about 18 months, more or less.
At the current rate of consumption in Japan, adding in FFT, FFXI, FFXIV/Heavensward, X-2, XIII-2, Lightning Returns, FFIV TAY, Crisis Core, (idk, they toyed with that idea with Zack's buster sword saying VII-CC), Revenant Wings, Dirge of Cerberus, Tactics Advance/A2 would be 12 additional titles, 6 of them which are very, very meaty. I wouldn't be surprised if it touched on Bravely Default at some point too considering how that's pretty much a Final Fantasy title in all but name, and even with Bravely having its own mobile standalone presence.
Record Synergy would probably be a nightmare though. VII-CC and X/X-2 obviously share synergy at this point. FFXII/FFT doesn't.
At the current rate of consumption in Japan, adding in FFT, FFXI, FFXIV/Heavensward, X-2, XIII-2, Lightning Returns, FFIV TAY, Crisis Core, (idk, they toyed with that idea with Zack's buster sword saying VII-CC), Revenant Wings, Dirge of Cerberus, Tactics Advance/A2 would be 12 additional titles, 6 of them which are very, very meaty. I wouldn't be surprised if it touched on Bravely Default at some point too considering how that's pretty much a Final Fantasy title in all but name, and even with Bravely having its own mobile standalone presence.
Record Synergy would probably be a nightmare though. VII-CC and X/X-2 obviously share synergy at this point. FFXII/FFT doesn't.