Maybe make it so that the stones that weren't really active during the first game, are now mysteriously activated? Then Ramza and companions (assuming he lived) try looking into the matter. Eventually characters you never really got to use, like Ovelia and Olan, become available towards the end of the game.

However, it seems Squenix is sticking to just a regular remake... *sigh*

Here's to hoping they smarten up and make a sequel and/or prequel in the future.