I have had something on my mind for a long time that has never been fleshed out: Family goals.
Maybe we could use it for new players. Roll up three random goals and tell them that their family would be really happy if ... things like "accumulate 200 gold" or "get a region lordship", etc.
This could work, beginners can get 'lost' in this kind of game... this way they will have an objective! Maybe give some kind of award when reached.
Some games had some kind of 'missions' to be made for the beginners, usually in increasing difficulty... a kind of tutorial... BM could use something like that.... kill some monsters, get gold, a lordship, a unique item, a Duchy, get much more gold, become ruler, with x duels, etc...
It's an interesting idea.