So here's what we know: Tad O'Malley clearly has some money behind him, as he's hired a chopper out to where ever Mulder has been hiding out, and he seems to have security with him (see the rough looking guy with the sunglasses, top right). He claims he wants Mulder's "expertise" - and unless he's looking at doing a violent crime profile, that probably means in the realm of alien colonization. The question here is whether O'Malley is friend or foe. As a right wing radio host, it might be easy to see him as a wolf in sheep's clothing, but he seems to know an awful lot about the plot to colonize Earth based on what he says in the trailer.