Not really mining and that kind of stuff no. This has more similarities with Archeage housing + additional features. Just a possibility to choose house style and then gather resources for it, similar with taking over towns later.
Imagine building everything from zero and them later having even own city.
This starts to go to the side of mount and blade but still.. more things to do is always better.
Additional things :
>Evil/Competitor heroes - not sure how exactly to implement this, but idea is that there are some other characters (npcs but with their own mission), that act as player - go around, gather party, do quests, but he does it much slower than actual player (to not make it overpowered, still if not dealt he may get too strong to handle), this npc will later attack player, so player is interested to find signs that he was near and try to kill him before he gets too strong. This can be associated with some large quest line as well.
>Guilds - player may join different guilds/factions, each give some kind of bonuses, if player do quest he may make custom guild and choose bonus abilities, then he can recruit npc to guild (not all will join). Guild members to not ask for money when joining and can be commanded by player (not directly) so as they will actually wear what player tells them to wear( if he in higher guild rank than his companion).
>Main quest line - player must proceed some kind of main quest line, it will add more roleplay elements, even if quest cant be finished yet, some signs about its presence will help.
>Animal/monster companions - chance to tame wolf for hunter of finding wolf cubs what can be rised to be companions. So as there may be rare chance to find intelligent goblins or other monsters what may have their ovn quests and may even be recruited (somehow remembered that goat man quest in first diablo)
>Conflicts with party members -members generate with some hidden stats what act as their beliefs and personality traits, if one or more of them differ too much, these characters dont like each other. So as most of human characters would not like monster companion.
>More exploration - unique places, hidden things, just large areas where to walk around and possibly find some loot hidden. Just another type of woods or wilderness places with large area to explore.
>Birds, rabbits, more wildlife - guess planned alredy.
>Gathering leather and furs from animals, maybe teeth.
Fur/leather for armour
teeth/fangs - for some custon armour, amulets, maybe arrowheads
?
>Amulets, rings and weapon bonuses - + strengh and so on
>Some ares in map only reached when going through caves and woods, maybe way to get to other map parts, way must be hard, but not rewarding enough to use as place for leveling up/loot .
>Bards in taverns - not singing, but at least playing some generic melody at least.
>I know more beards/hair ... customization is already posted. Additional may be fat/muscular choice.