[Locked to Jemma/Lincoln/Daisy/Mack/Hunter/Etc.]
Jemma, I'm from further in the timeline than you are, AND I've watched the whole hellscape that is our show. There's an Inhuman that can seem to be someone else, and for a while he looked like Will. It can infect Inhumans into following him, so Lincoln needs to stay away until we're sure. I'll go with you and help in case it really is him.