Here we go again... This is a clue! If you don't know what I'm talking about, ignore this. If you do... Figure out the equation Roshar is based on, take the first two letters from the
All right, first word, and the first and last letters from the last word, add ice at the end, and you'll get someone important. Then: DIFDL BMM NFNFT
I'm going to try to make this as brief as possible:
According to the Coppermind, Roshar (the continent) is the only continent on Roshar. (Now the link to the arcanum is missing, so this could be invalid, but I'm going to stick to it)
But it specifically says continent as opposed to landmass. In addition to that we have this line, from an interlude from a man named Puuli in OB:
Okay. I highly doubt that any boats on Roshar could withstand a highstorm, so it's most likely metaphorical.
Meaning, that there would have to be another place for whoever they are to shelter. Also, because of the spread of crem, it would make sense that another landmass would be formed. In addition to all this we have the story of the Wandersail in tWoK, which is generally described as a Kaladin realization moment. But this is Sanderson. His writing, it is a riddle, wrappped in a mystery, inside an enigma. There's explicit mention of another significant landmass in the story, and it's probably alluding to one out of it as well.
But above all this there is one final bit of speculation that is the linchpin of my thoughts. There is a Dawnshard missing. I could turn this into a rant about how most of the Dawnshards are probably the Unmade (hardly original, I know), or how the Dawnshards are probably Odious in nature. But whether you agree or not, it is most likely the Dawnshards are not in Aimia, (then they'd have probably been shown in the RoW preview chapters) and where else on Roshar would they be? Please post thoughts below.
Edit: What I mean by significant is that it could: A, support life. And B, it could provide enough resources, and shelter that people (or singers) could survive, and eke out a living.