Brief Halo 5 Campaign Footage in New Xbox One Video

Xbox released a new promotional video today showcasing some Xbox One titles.
Most notably, there is a quick scene in the very beginning that shows Agent Locke from behind, preparing to exit the rear of what we can assume is a pelican.



The rear of the pelican also appears to be transporting a vehicle of some sort. Much like we have seen them do in previous games with warthogs or scorpions.
Is this a sign that we will be getting a Halo 5 Guardians cinematic trailer soon?

What do you think?