Ares! Last I saw you was quite some time ago was in
this thread! And man those screenshots look so great! So that's what you've been up to eh? You have my support mate, as I've already mentioned -- I really love the Redwall series. The Mount & Blade mechanics definitely aren't far off from being able to suit the atmosphere of the Redwall lore.
In relation to the poll on what the world map should cover, I think it should cover all of the Redwall locations. My reasoning behind that would be too allow the mod to take place on a timeline past the latest book in the series. Why? This would open the doors for your imagination to come up with your own quest, storyline, villains, and generally just keep a lot of doors open for possible customization/improvement. Why limit yourself to just one certain era of the series, when you can forge ahead and give yourself the freedom to almost create a totally new, dynamic, and imaginative storyline that takes place in the world of Redwall, but necessarily within a certain time period of the books.
For example, there is an actual Redwall game being made by fans just like you and I. Although they've seemed to be inactive as of last September in 2009, they have gotten extremely far -- far enough to show video previews of their work and progress. Take a look at this video to see what I mean:
A Tale of Redwall - Preview Video 29. You can also see the thread where they originally posted their project and started: http://forum.thegamecreators.com/?m=forum_view&b=19&t=85322&p=0
Take note that the way these guys choose to deal with creating a story/plot was to have the game take place outside of the time period of any of the books. (At least as far as I can tell this is what they've decided on). I've read through their original topics and also browsed through lots of other comments/sites they have posted their work on. By deciding to have the game take place outside of any specific time periods from the actual books, they were able to conjure their own unique characters/quests/story plot that could make for a very fantastic adventure when played. (If they ever finish+publish it of course).
That's just my lonesome opinion though. You've got my vote for this project either way, I hope things can get off the ground. I think I've told you my limitations before, but if there are tasks you think I might be able to do, don't hesitate to contact me. I'll get back to you soon as I can.
For Reeeeedwaaaallllll!!!!