I never posted before, but I played s4p completely, including basically all major mods, same for this game and I absolutely looove it. Congrats to the dev(s?) especially the new class system is great! That said, I have a few suggestions and decided to get them all out of my system. I separated them into different topics for ease of use.
Here are some suggestions for quality-of-life improvements, I'll try not to repeat what others already said:
Display buyable classes Since its possible to see the details of each class before actually buying them at the guild shops, i dont see why they (and the fact that they can be bought) shouldn't be displayed with 'show locked classes' active.
Move the forget button Maybe that's just a problem I have, but when I use the 'travels' screen from the mansion, I instinctively click the 'forget location' button wayyyy too often. Maybe it could be moved someplace else and/or made smaller.
Order custom slave In s4p (or maybe in a mod) there was a late-game feature that allowed you to order custom slaves/slaves of a specified race at a greatly inflated price. Especially for roleplaying, purposes (like playing as a collector of sorts) I'd love a return of this feature!
Display missing resources in the progress bar When there is a resource missing to craft an item, it would be great if the progress bar not only said that a resource is missing, but also which one, so that you don't have to go to the crafting menu before organizing how to get it.
Display resources in storage when crafting custom item When crafting a customizable item, the number of resources needed vs the number of resources in storage are never displayed right next to each other, unlike they are when crafting a non-customizable item. This should be fixed.
Unselect skills when selecting a social skill, you can only unselect it by pressing ESC, which is very unintuitive. I suggest that left-clicking the skill again unselects it.
Make journal available from the menu Making the journal available from the menu would just be a nice, helpful shortcut.
Make the menu more accessible Right now, the menu can only be opened in the mansion with a button. I propose that the ESC key should open it everywhere and that the journal button in all other locations besides the mansion should be replaced by a menu button (or maybe have it placed next to it). Also, a quicksave and quickload button/key would be nice.
Display slaves in Cities As it stands, in cities like the elven capital the present characters are not displayed as they are in dungeons or settlements. This generates confusion, hence I suggest adding an interface similar to the top left part of the interface in dungeons.
Skip button/key There should be a button or key to skip animations, especially text animations, and make the text appear instantly. The slow text animations in repeated scenes (like the guild masters) are incredibly annoying.