I had this thought a small bit ago. What if Sacred Stones had done what Fire Emblem Gaiden [the game that inspired it no less] did with Alm and Celica in having 2 alternate teams you switched between depending on the chapter.
When Eirika and Ephraim split up, Do you think they could have divided their forces with a set group or 2 groups you picked [kinda like FE10's final set of chapters before the Tower]?
I'd have liked it a bit I think, just have certain new characters show up only in either side and you get a more complete story that way, granted the personal Lyon interactions later might be gone as a result and that would be kind of sad I suppose. So what do you think?