Wish I could, however this would either be very complicated, or needs to be as a incompatible mod setting some references point in fort templates or something. I wanted this mod to be compatible. 

What if you add the ability to snap walls to a fortress' towers? Then fortresses would be more realistic, more useful to build, and take up less space.

That patch is really old, and has been abandoned for a while now. I'll probably talk to the programmer who added it into A26 for TUN. Unless he (or somebody here) want's to update the A26 code, then I'll probably have him recode it, since it relies on a lot of other features I don't want (yet).

Alguma novidade do mod?? 

If some player is stubborn and doesn't resign use horse riders to scout everything, preferably with custom-walk (hold alt and hold left click to draw a line) so the riders walk parallel to scout a lot of area. If that doesn't work light up the whole map with outposts and have a look on the mini-map for the color. That should do the trick. If not double check the victory condition.

Updated : Significant performance improvement (First version was bad, this one fix it but also improve wall placement performance impacts in general)   Now other towers can be used as a starting or end point for wall placement instead of wall towers. This doesn't prevent you from walling easily around them : you can also snap walls and palisades to their edges! (The threshold distance makes it so easy to choose between the two you won't even be bothered).

If they're still remaining you haven't won yet; did you capture or destroy the big central building (CC)? Sometimes there's just a civilian standing where they last worked, sometimes all remaining units run somewhere to build a port.