Man I hate being on business trips. Didn't get to watch until last night. What an ending. A few observations. I don't think Talbot was a LMD, but I do think his assistant was. It was relatively clear she was pushing the agenda that Aida wanted.
I agree with others that next season they need to find something other to do than pick apart Fitz and Simmons. Hell, screw with Mack and Yo-Yo for a season or 2. I am re-watching to see what I missed and try to make heads or tails with the ending. I don't think Coulson is captured by Mephisto. I do think they are doing S.W.O.R.D. for season 5 and that's what it was. We may see references dropped in Thor in November, possibly them tracking his arrival on Earth trying to find Odin.
I was surprised and disappointed that Vijaay didn't turn up. Pretty much a total waste of him in S4.