Click to look at Fódlan!
Ok, so, here's the map of Fódlan(?), right. So, this continent goes on right?
Click to look at the surroundings of Fódlan!
And to the east there's a continent named Palmica. I might be crazy, but doesn't Palmica look strangely like...
Click here to look at FE 10 Tellius Map!
But reversed, I guess. What is "Palmica" Could easily be Begnion and Daein, with the southern Islands being those islands that we see below Palmica(don't judge my spelling okay, reading what the map says is difficult). Leicester in the east of Fódlan is slightly brighter than the rest of the map suggesting a desert, and then in the Tellius Saga they clearly state that there is a desert to the east. I mean it's kind of a long shot, and there would have to be a reason for Tellius to be flipped on Fódlan's map(it could be as easy as it's simply just perspective). Or, I might just be crazy. But, I've been thinking about this like all day.
(All of the links except the surrounding Fódlan one should just be Serenes Forest links so they should really not be harmful)