From RTSGuru these are the "titans"

These are Vassari...........

And this one.......

Now i'm guessing that the first one is the titan cause it says nothing about a battleship and the second one is a new titan cause it has the title BATTLESHIP. Again a guess.

Then there is the TEC titans.........

Then this one..........

Now both of these are titans because they have been confirmed by the devs

Then lastly are the Advents..........

Then lastly...........

This one took me awhile to find

I cant tell if they are titans or not at least one is cause there will only be one new capital ship for each faction. But regardless all of these things will kick but!!!!!!