I don't know about 6 years.. not with Square Enix's track record of Kingdom Hearts. All the Kingdom Hearts games.. sure theres 1, 2, 3... and 20 more. But if we consider the entire thing to be one complete game and not endless sequels then it took Square Enix 18 years to finish Kingdom Hearts. Kingdom Hearts took so long, children were born and turned into adults by the time they finished it. I figure FF7 Remake will be like that but not in that scope. We'll probably get a handful of sequels to finish it up but not 20.