Thank you for your feedback - I am glad you enjoyed the route.
As for your suggestions-
I really do not think I will be able to provide ending replays. There a few subtle changes in most endings depending on how you played that route, and I would not be able to replicated them outside of the route.
I will try to find a way to add more save files, though now the GUI art is completed it is not as easy as just changing the code.
Perhaps at the end of the project I can add something to the Extras screen which details things like the geography, religion, etc. for those who are interested.
And no, there is no way to make a tyrant out of Leopold. The options are just for the MC. If you have played the ending where you declare war, or the ending where things go very wrong and Leopold takes matters with Ozol into his own hands, you can see how he comes to regret his decisions. As much as he might hate the Vilquine, Leopold is no tyrant. ^_^