If we go to Mars now or later, I hope we do so not like a warlord simply looking for allies but like a proper Prophet arriving to the holy city of his god, a leader of a mighty crusading host as we are. Just like the Emperor, he didn't simply knock on the door and do some diplomancing. He made it rain and came down from the sky on a golden barge.
In the very least our entrance should be just as awesome. If Talos chooses to go now or later, I hope he's brought the rain (the real rain) and is ready to descend from the damn sky as a true prophet and messiah of the Machine God
https://www.youtube.com/watch?v=rUsgiosqJqw