Luke Mitchell from the Tomorrow People, has been casted for Marvel's Agent's of Shield season 2 part 2. He will playing the role of an Inhuman as of yet we do not know which one all we do know is he is called Lincoln.
Lincoln will be joining Shield to help teach Skye/Daisy/Quake how to control her new found power's. Because from what we have seen in the mini trailer for episode 11 of Agents of Shield Skye has no control over her powers which can and could pose a danger to the team.
So maybe Luke Mitchell/Lincoln could be a possible character we will be seeing in The Inhumans movie, depending on how the audience take to him in Agents of Shield.