During this preview, Blair mouses over a few of the unique Advent Rebel techs, if you pause, you can read the descriptions.
Reanimation: Allows the renewed Unity to create a temporary clone of destroyed enemy frigates or cruisers.
Return of the Fallen: The power of the purified Unity causes some ships to be revived from time to time.
Protection of the Unity: The purified Unity focuses some of it's power to help regenerate the protective energy fields of friendly ships.
Mass Communion: Lowers the cost of constructing new temples of communion in order to more rapidly spread the true word of the Unity.
We also got to clearly see the Titan names, so the full set is:
TEC Loyalist - Ankylon
TEC Rebel - Ragnarov
Advent Loyalist - Coronata
Advent Rebel - Eradica
Vasari Loyalist - Vorastra
Vasari Rebel - Kultorask