That said, it is also important to me for the native game to be good. Aaand while I think they still have a way to go with working out all the bugs, I don't think BL is as far off as some people do. If they finish properly implementing all the content that currently has place holders, fix all the bugs, finally fix the blasted siege AI, and hash out the workings between the main character and other lords or clan members, they will have a very good game. If they manage to implement a story that has some real choices and consequences and is a bit more diverse in how the player can progress that story, they will have a great game.
Mechanics such as right to rule, camping, and all that are replaced by what are in many cases better mechanics. Bannerlord has all kind of other stuff that Warband didn't have.
To start:
-The economy functions so much better than in WB, where it was virtually non-existent. One can actually make money off of buying and selling in the right places in this game
-Way more food types than in WB and more point to keeping diverse food types as this actually affects player skill growth
-More skills and stats that actually level up as the character takes actions. In WB it was combat skills and everything else was solely based on where you put your points. Here you actually have to use medicine to be a good doctor.
-Character skill and perk system that will be so much better than WB once they finish implementing it properly.
-Villages offer more than in WB, in terms of quests, recruits growth, as well as products.
-Far more equipment variety than in WB and far more troop variety than in WB
-Way more quest variety (and likely more still to come) in BL
-Sieges with real siege weapons that will probably be pretty awesome once they actually work
-Clan and family system (CK2 like dynasty mechanics). This also gives you a way to have other parties help you without being in a kingdom.
-So much more to do with your kingdom as both a lord and as a ruler, in terms of what you can build in your holdings, in terms of policy that affects the kingdom, in terms of general kingdom politics
-Asking a random lord to follow you is replaced by creating an army and using the influence system to invite parties to join you. It's different, but it is not worse. Trying to gather the right group together could be very difficult at times in WB. The army system gives the player way more control.
And finally:
-You can stand still on the map without the laborious chore of having to set up camp
And so much more that I am not thinking of... but basically BL will be a much better game than WB even without mechanics like "right to rule" that are effectively replaced with more thoughtful and fleshed out systems.
Look, I played WB for hundreds of hours too and enjoyed it, but there are also plenty of annoying things about the base version of WB. To start, basically the only way to play that game was full on cavalry charge, every single battle... Yes VC added a lot more stuff, but that wasn't WB, that was VC. It was really good once they polished out the bugs, and you can see they have tried to take a lot from that. They are still working out bugs and kinks with the tactics, formations, and story, but I can see a lot of good stuff in BL that I can tell was inspired by VC.
Ultimately a new game is never going to be the old game you played with better graphics. That might be what some people want, but that stuff doesn't sell. BL adds features that make it a unique game, and every good game should be unique, especially if it is a sequel to another game.