So you telling me that;
-Meteor like event of 1.0
-Ultima weapon
-King Thordan
-Scorpion robot
-City of the Ancients
-Hades
-Cloud's bike
-Advent Cloud's outfit
-Cloud,Tifa,Aerith minions
And the new trial series.

Were not enough fan service for FFVII :P

They will probably have a reference to FFVII in the last part of each expansion until the game dies as is tradition while off adapting whatever for ffxiv more :P

Personally I'd like to see more FFIV, IX or X stuff since they aren't as heavily used as the others have been and that is if they must have fan service.