When I first started up my save I went to get a face make over and noticed that there is some new NPCs in the Ragged Flagon. What I've seen is and Alchemist, an Enchanting Table, I think another bar, and some other things I can't remember. But what all have you guys noticed that's new or has more added to it in just Skyrim itself or the Thieves Guild?

Don't know if this is new or not but you can see rain landing on the Rivers now, also like to point out the the stuff from the game jam that made it in, like running water in caves and dungeons, and dark caves and dungeons!

Was one event in particular where you come across a strange falmer hut in the dark...many a brick was [censored].

Sounds like you did the Thieves Guild special jobs.

I was thinking the same thing when reading the OP. Maybe not all of them, but at least some of them in order for those couple of merchants to start showing up.