I would expect given the setting and time difference between the originals and Andromeda, that the armour may be quite different in order to visualize how different an environment they are in.
I am noticing that the character (at least in the trailer) seems to be using a flat-top version of the Carnifex pistol though, so I hope that they keep the same style of weapons at least, and don't lean too much towards the Collector style weapons we saw in ME:3