will you develop (later not now) in the end of the story multiple ending ?
That's a sure thing.
I mean we know that the witch quest will have consequences if you choose to save the witch.
We don't really know if the game will have different endings but something will surely change during the gameplay in base of your choices.
Exactly, at the beginning of every game I'll ask you questions about the previous ones, so your "save will be imported" to the next game.
Be careful with your choices because they will affect the end of the final game of that Era, what happens to you and other characters.
However, in between Eras, I have to pick one canon ending to base the next Era, because realistic speaking I can't create all the Eras based on all the choices made in previous games. Imagine the hell it would be to make the final Era (future)
So when you finish the 4th game (end of an Era), you will get something like:
Optional End 1
or
Optional End 2
or
Optional End 3
or
True End
The True End is the one that I'll base myself for the next Era. It's the end with the "canon choices".
But even so a few things will be carried out for the next Era, for example, small things like who did you ended the game with, your love interest. The love interest of this Era will give stats bonus for the protagonist of the next Era, just like your city choice at the beginning of the game.