I wonder, if we will see some of flashbacks of Tomas trials in the academy? That for sure would be interesting. Also, how much we will learn about the universe of the ToaM? For example, geography, different nations / races / species, customs, cultures, historical events? The world of the game is very interesting, although to satisfy that questions, codex would probably turn into a small book for itself.
I did some flashbacks, of sorts, about a year ago to show some of the history of the MC. It wouldn't take much to integrate those into the game somehow. But outside of those? Maybe. If it makes sense to show them, I make more.
As for the other stuff... Oh boy. In game? To a point, there are other places and nations that are going to be visited. Right now the crew is heading north and eventually the things change. Sure the Empire has been mix of asian and european/nordic styles but that's mostly an asset issue. Still won't regret it though.
There are elves coming in later updates, so you get to see some of their culture, etc. There are Naga's that I've been showing in the past coming soonish, so you get to see some of their things. And of course, more orcs and some dwarfs...
In the codex? I have plans to expand it from what it is, but it is more or less on the back burner as there are more pressing issues to deal with.
Geography... How should I put this? I suck at drawing. I mean if the fate of humanity would depend on me drawing anything but a straight line, and even that poorly, we all are fucked. And not in the good way either. But that being said, I won't make promises regarding maps. If I get the hang of one programs, and I can get something decent out of it. Maybe. I do have detailed notes and some random doodles about locations, distances and so on.