We'll see about that. I have no idea what they improved upon at this point but seeing how game is lacking some features that are touted these days as must have for every so called RPG (I'm looking at you Fallout 4), that is huge plus in my book. Shows they are focusing on important stuff.
But main reason why Bannerlord is my personal number one is community. Due to quite decent success of previous games in the series and track record of Taleworlds, I'm inclined to believe there will be a lot of people playing Bannerlord. Which is something I can't say for other games, especially very interesting games such as Life is Feudal which screams for many players to populate that world but doubt they'll ever get there.