Ghost Rider, who will open up the mystical side of the MCU for the show in anticipation of possible tie-ins with Doctor Strange.
Now, the circumstances seem to be perfect for them to do Ghost Rider and (hopefully) do it right.
One of the reasons the violent nature of Ghost Rider can be shown now is the move to 10pm, giving Agents of S.H.I.E.L.D. more leeway in terms of the content it can include.
It is also good to know that they are planning on giving viewers more than one chance to see Ghost Rider with the fire skull in full force.