lol. Paradoxes for the win/lose?
Morgan's ending makes me think that they had intended for Morgan to actually be the tactician from FE7. Speaking of which, the tactician in FE7 disappeared without a trace, right? So maybe Naga accidentally sent Morgan to elibe and then was like 'oops' and brought him/her back to the correct world, erasing his/her memories of elibe.
That's how I interpreted things, anyway. Doesn't matter if anyone else thinks so, I think it works. XD After all, any explanation is better than none.