I can see a half open manhole cover on the screenshots. Made me think that it would be cool to have a modular sewer system later on. But i don't know if that will fit in exteriors.
Just adding to your ideas.
I already got the Modern interior pack liked it a lot.
Really like your work. Got this one too. I already know the future updates will be good. Looks nice so far.
Would be nice if you could create Unity Assets for your Packs too. But i know you've got enough to do with this Pack.