I'm a bit late to the game here, but I just finished the season on Netflix. I need to put on my best Margo cold hearted bitch here because I have to say it - Quentin's death didn't shock me, devastate me, anger me, or anything. I'll admit to not being a huge Q fan, but I really liked the character this season. I liked how he went out and I have no problem with the character being gone for good. I do wish the "fixer of broken things" had been brought up earlier in the season (or whole series), but like how it was tied in at the very end.
Julia - many posts above talk about Penny making the decision for Julia, and that either choice would be an "arduous journey". But that is not correct. The Brakebills Doctor (sorry, can't remember her name) says that Julia's problem is that the wound keeps opening back up as soon as it heals. Here's what the Binder then says to Penny (I rewatched and put it on CC to get this):
The Binder then tells Penny he made the right choice. Julia, the Binder explained, would remain in a cycle of wounding, agony for millennia. Her body required transformation. Luckily, this was The Binder's expertise. The Binder needed direction. Initiate her long arduous journey to full goddesshood or revert her body to that of a mere human?
So Penny had the choice - let Julia spend 1,000 years in agony as her wound healed and reopened (this is the "arduous journey"), or let The Binder "transform" her - return her to being human so she could heal normally. As the doctor said, this was a "no brainer" decision.
Loved the bonfire scene, but I didn't get the throwing personal items into the fire. Is that a thing among Magicians or Breakbills? Most of the stuff, no big deal, except for the signed Fillory book. I liked the musical number. The cast has some amazing vocal talent (Kady, especially) and I think they way they divided it up used the talent well. But it hit all the right emotions for me for that scene, in a way dialog wouldn't have been able to.
I liked bringing in the hedgewitches at the end, too. I'm hoping that in Season 5 the Brakebills vs. hedgewitch caste system gets broken down. Also hoping that in Season 5 Alice goes back to her normal speaking voice, instead of the breathy I may start crying at any moment affect she's had this whole season.
I enjoyed this season, and am looking forward to Season 5 (I may get Prime so I can watch it in real time). One thing I only noticed in the last few episodes - that all the women in the Library have the 40's style hair, makeup and (somewhat) dress. I thought it was just the main Librarian's style, but when Kady went in with her she was all done up in the same style, and then I noticed all the other women, too. I wonder what they all looked like prior to the 1940's?