CalenLoki said:M&B MP was possible a long long time ago, before M&B v1.0 was released. Better - it was done by modder! here's the proof:
http://forums.taleworlds.com/index.php/topic,53898.0.html
About TW map - I also liked real time (with pause) more than turn based, because it's more natural, intuitive, and doesn't allow strange, gamey moves like turn based games.
Also, TW is more about large kingdoms, and for me M&B was always about your party/warband, so less than 100 players. I'd rather see better party management than going to kingdom level. Something like hiring support units (healers, carts/wagons, engineers), choosing party travel options (slow march/forced march/sneak, set scouts/vanguard/rearguard), support party (food, water, sleep, weapons, ammunitions), and more options on the world map (setting camp: fortified/quick/hidden/siege, splitting your party: send back home/stay at camp/ect.)
Other thing that comes before kingdom management is map objects: bridges should actually mean something strategically, forests should make travelling with cavalry/wagons nearly impossible (not just 20% slower), roads should mean a lot (like 2x faster than grassland for wagons, 1,5 faster for horsies and 1,2 faster for footman-only party), castles and towns should block movement (so well guarded castle at mountain pass can't be just skipped)
And other stuff like that.
Heh, I remember when that was posted. It got my hopes up quite a bit, and then proceeded to beat them over the head with a shovel.