Here's some scoop on Grimm from this week's (Posted on 3/22/17) Ask Ausiello column.
Question: Do you have any scoop on Grimm‘s final episodes? —Jen
Ausiello: Remember when the magic stick did weirder-than-usual things at the start of this season? Yeah, so does David Giuntoli, and he hints that the mystical piece of wood isn’t done yet. “The stick does, in the beginning, seem to be some kind of heroin stick,” he says, laughing. “And if you pay attention in the last episode, I think we’ll see that perhaps the stick is, and has been, rightfully seen as a problem.”
Link to the full article:‘Bones’ Series Finale: 447 Mystery Solved in Season 12’s Last Episode | TVLine