And he came back in A Link to the Past... which is surely after Twilight Princess. They better not bring him back unless they take a look at the official Zelda timeline of theirs and bring him back somewhere that won't screw my the generally accept timeline up.

As far as I am concerned, Ganondrof is dead on both timelines:

OOT - MM - (Twilight Realm Sentence, returns) - TP (killed, reborn, Sealing War) - ALTTP (killed) - OOS/OOA (Twinrova attempts to revive, fails)

OOT - (sealed, escapes) - TWW - (killed, Master Sword lost, reborn as ancient demon) - FSA - (sealed, escapes) -LOZ - (killed) - AOL (minions attempt to revive, fail)

Don't bring him back unless it is to chronicle the Sealing War that, on my timeline, happened after Twilight Princess and before A Link to the Past. After that, leave him be to let the timeline stay at peace and not be messed up again my his overdose of appearances.