Oh, I wasn't planning on doing any work to allow mods for the game (other than possibly releasing a scrubbed version for people to tinker with once we have the final version out), I was just explaining why some things can be annoying or hard to do, and if mods are possible at all.
The problem of adding a clothing system is (ultimately) a matter of time. It's not impossible, but it would take me months of work to complete (I'd need to "open" all NPCs one by one, and copy paste code, often multiple times, just to get the structure off the ground, and of course any unique dialogues have to be written by myself). It's simply not part of my plans, it would kill my schedule (and likely, the game). It would also be error-prone, because adding anything retro-actively into an RPG Maker game is a pain, because of how the engine works (it would be really easy to miss events everywhere, causing glitches, because there isn't a master list of NPCs/events I can browse, I need to scout the maps manually).
I am expanding the scenes involving traits whenever I can (and suggestions for individual scenes/dialogues that could use a variation based on this or that trait are welcome), just don't expect to have something change the game completely at this point. There are over 200 maps (and actually even more screens, as sometimes I use one map for multiple areas), so I wouldn't be surprised if on average, there were several NPCs per map, the game is too far into development to make sweeping changes in certain areas.
More sex scenes will come. I want to add more dominant content, so that will happen for sure as well, but I am unsure if I'd want a "Domme" trait. The bimbo trait is tied to mind control, so it isn't always "active", but keeping your wits as a bimbo isn't going to be added. Other than it being slightly silly, I am not sure how that's supposed to work in the scenes that do react to the bimbo trait... Should I have 2 versions as a smart and regular bimbo? XD