Man you're actually coming in suuuuuper close with your analysis o.o
The game will have a total of 5 acts with act 3 being about the same length as both Act 1 & 2. Everything will be explained in time! ^_^ but yes, there will be more princess scenes moving forward as well as a clear cut explanation of what her connection with the protag is.
as far as the knight and the demon stuff, it will be explained further in act 3 :D
Viewing post in Rising Saga: Origins (Demo) comments
Well I actually noticed just recently that the king has blue eyes. But shit Serrani mentions a father and I'm getting the suspicion that the protagonist might be a bastard. Sir Garth had blonde hair and green eyes. And seemed to have ahem... *feelings* for the Queen in the prologue. It would definitely explain why the king might send assassins after the protags family. When Serrani kills the king she says something about him ruining her family.