@Robby:
Coulson coming back? Dude is still dead as far as the films are concerned. (Ditto any and all plot points about Inhumans.) When SHIELD launched they tried to pretend everything was connected, along with the Netflix shows, but its such a loose vague connection with so little actual overlap it doesn't really matter.
The Netflix shows never even ATTEMPTED to pretend they were connected to the larger MCU outside of mentioning "the battle of NY" a dozen times or so.
I get why the films haven't tried to connect. They're telling their own narrative. It'd be awkward to just be like "oh yeah and by the way did you hear Ghost Rider is kicking it with Coulson? Cool right!".
But AoS -in their own context- has been as connected as they can get to the MCU. And especially given they're working through the dumb aspect of having a completely separate creative force -Marvel TV- handle this show that was pitched as being connected to the Marvel Studios films. By Clark Greg's accounts, they really don't get any insight on the direction of the films either.
So I appreciate the smalls things that do get placed in. Agents of SHIELD does tell it's own stories, but fits them into the context of the films pretty nicely. The obvious exception is the plot of Winter Solider, which took over the story of the end of their first season. But it's nice to see them attempt it at least. Especially when the films clearly need to be able to tell a story without saying "Go watch 6 seasons of this ABC show to understand".
Examples would be like having a plot point of Coulson having a mysterious protocol for half of a season, with only certain agents being in the know about it. That protocol ends up being having the Hellicarrier and it's crew ready for when Furry has it in Age of Ultron. Or Furry himself popping in -in the same clothes no less- right after saying goodbye to Cap and Sam and the end of WS. Ghost Rider's portals use the same effect as Dr Strange's, the Sakovia Accords effecting how SHIELD had been operating. Not to mention characters like Lady Sif, POTUS Ellis, Maria Hill, one of the World Security Council members on multiple episodes.
The biggest probably is the end of season 5, with Thanos's crew invading being the direct motivation for the end of the season's villain.
Again, sucks that it is one sided, but I at least applaud the show for putting effort into still attempting to keep it connected and consistent with the universe, both in it's plot and by actually getting film characters in these shows. Unlike every other "MCU" show that makes no such attempts.