The book isn't based off the game and the game isn't based off the book. They take place in the same world.
The book takes place after the War of Magic which is why Resoln and Tarth are not around at that point (which will be explained in the game in the future). But there are 10 factions during the War of Magic.
I am not sure why anyone would sweat it about "the lore". In the sandbox mode, which is what 99.9% of players will play anyway, you can be space elves or whatever. You can create your own races and save them and play against them.
I'm so happy you said that. I was facepalming pretty hardcore there for a while and was about to point out that very fact. But anyway, let us all sit back and practice a new mantra: I will not feed the Trolls. Now that we have that settled..
The map looks plenty original to me. I mean, lets be honest..There are only so many ways you can get "creative" with a world map. You have land, and water, toss into a sphere and shake, let sit for a few billion years. Ta-dah! And yeah, no need to get scientifically literal about the processes. The landmass(s) thus far look fine to me. They are obviously only one continent, that or they're just two big islands connected by a small portion there at the top. So lets go with a small continent (by Earth standards) and focus on..Lots of ocean out there, probably some new world here and there (expansions anyone?).
Not sure I like the space elves idea though..I mean, if they're going to be space elves, then that means they'd probably sparkle right? Like Avatar..So lets see here..Fair hair, sparkling, pointy ear-s...W-wait..N-no! No!! 
Oh right, there was one little thing I forgot to mention..The mysterious lake that sits at the foot of a mountain range that is draining(?) off into two different directions. Now, I'm no expertz, but is it me..or aren't the rivers actually flowing into the lake? They're wider at the sea/ocean connections, and become narrow as they approach the lake itself. I mean, I could be wrong, but I don't see the tiny stream suddenly becoming a much, much larger mass of water flowing into the ocean. Plus, we have no details on the sea-level anyway, nor do we know if that lake is even a non-man made formation. Snow melt from the mountains seem like as good a reason as any for the lake. Just my two cents, or lack their-of.