Interior wall layouts

With housing mirage and how it'll look completely up in the air at this point, I figured I might as well plop my desire for it here and hope some intern skims through it. Hello, if you're there. Please take my idea directly to Yoship immediately and don't stop pestering him until he agrees. Cry if you have to.

ANYWAY

The idea is simple. Know how we can buy more complex exteriors like the bathhouse, florist, restaurant and forge? Yeah, I want that but for the INSIDE. Specifically, I would like interior walls which mix the base layout of the house up a little in addition to changing the interior theme, I'd like to see them change the positioning of the stairs, maybe how some of the rooms are distributed, pillars and such, the whole "skeleton" of the house. It'd be nice if one of those interiors could be a completely blank space to work in, without pillars or defined rooms as well, though it sounds like we might be getting that option in some form regardless.

I don't think it would be especially difficult to do, but I've been wrong before. I'd just like to be able to customize the inside layout that much more. Let me know your thoughts and suggestions to improve the idea. Thanks for reading.