THIS IS A RUMOR. Shit, don't want hate mail like last time hahaha. Anyway if you look on imdb,com and Avengers 2: Age of Ultron you'll see (rumored) next to his name. Well, speculation time!!!
This season will take us directly into [The Avengers: Age Of Ultron](movie:293035) if I'm not mistaken. Okay, not directly but close to it I'm sure. Maybe have the last two episodes lead into it?
Remember what's in this season though: Mockingbird, hopefully Skye's 0-8-4 origin, her father, and many, many, many [Agents of S.H.I.E.L.D.](series:722469)-ish suspenseful things will have happened before 1 May 2015.
Why is Triplett only rumored though? So many questions! I figured I'd better make this while it's still on imdb!
Check it! Search his name on imdb!