I’ve been enjoying the new layout here on meta, too! Warm congrats and much gratitude to the staff experience team who put so much thought, time and effort into getting it to this point. It has so many moving parts so I know it was no easy task! 
I like the moderator notes and the “copy note to .. profile” tickbox too - that’s a nice touch! However, having used this for a little while already I want us to resist the temptation to turn that feature into chat for moderators or load it with features.. in my mind this is mostly for moderators to help each other with the specific reviewable item, while reviewing it and again later for future reference.
I also am not sure how much we want to load into the user notes - that feature is fairly barebones and works quite well as is to share key details about a user amongst moderators. There is no way to search/filter user notes so if there are alot of them it can become hard to manage.
I noticed that a note I added recently didn’t make sense in the user notes out of context, so I deleted it and posted it again.
Done! Wow, @T_Disco that’s an impressive laundry list of feature requests!