In the news page for “INTRODUCING HALO WARS 2: AWAKENING THE NIGHTMARE”
There is an image of concept art for Terminus Firefight & in the right side of the image there’s a strange Banished walker of some kind. It doesn’t look like a Locust or a blister back and it to small it be a Scrab, my guess is its going to be DLC.
https://drive.google.com/file/d/0ByZl_5G6GYpNSGpOTWcyVDNoU2M/view?usp=drivesdk
Here is a Image that shows it, tell me what you think. 
Looks like a syphon locust or a variation of the locust.
Edit: I think it might actually be the last stand locust from Blitz.
Definitely some locust variation
> 2533274821521504;2:
> Looks like a syphon locust or a variation of the locust.
>
> Edit: I think it might actually be the last stand locust from Blitz.
I don’t play much blitz so thanks for the insight.
> 2535416010022389;4:
> > 2533274821521504;2:
> > Looks like a syphon locust or a variation of the locust.
> >
> > Edit: I think it might actually be the last stand locust from Blitz.
>
> I don’t play much blitz so thanks for the insight.
Yep! Last Stand 2(?) Locust I believe, a specific Card given to Colony when he was first released!
Don’t know why, but it’s interesting nonetheless!
I don’t see why they wouldn’t put Blitz units in campaign, they did it with Halo 5
It might look like something new as it’s concept art but it’s probably just a locust or blisterback drawn quickly as it’s ‘concept art’ - things can usually look a bit different