SEASON PREMIERE: Season 5 ended with Coulson (Clark Gregg) going off to Tahiti to die, with May (Ming-Na Wen) by his side. Coulson, like a proper Marvel character, already had died and come back to life before, long before the events of the current Avengers movie. For Season 6, Gregg will continue to be involved: He directs tonight’s Season 6 premiere, and is slated to show up on camera this season, but playing a different, darker character. Other things we know about this season of Agents of S.H.I.E.L.D.: Season 6 jumps ahead one year. Mack (Henry Simmons) is now the director of S.H.I.E.L.D., and Simmons is still striving to be reunited with Fitz. And so it goes…