Well, with the inevitable story of Midgar with fighting added in, it'll already be bigger immediately. And, again, it has been at least suggested by SE that each episode will be on par with a full game from them. I don't think it'll go to that extent but we shall see.

Personally I'm not overly bothered so long as the price of the episode justifies the size/length of the episode. And to be honest, I'd pay three times as much money for my favourite game of all time in comparison to what I pay for a regular game, so a remake would probably get me paying silly money no matter what.