After looking at this screenshot PTW Screenshot I have notice some new unit commands next to the existing commands. There are also some new buttons above the unit selection screen. I am guessing (From Right to left) Next to the "Go to" is the Undo and Unknown.
The ones above the Unit Selection screen, I am also guessing, Is go to city (Next,Previous), Unstack units, Stack units, and possibly go to stack units
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The new unit commands look like "Surround this tile" and "All attack here"
The four above the turn status screen are probably "Look at city screen with next and previous", "Group", "Ungroup", and "Select this group with next and previous".