Character-Switching Action
Throughout the trailer, there were bombastic moments which hinted at how combat would work in Final Fantasy VII. During the action we see Cloud and Barret brute forcing their way through enemies, while also seeing that Tifa is in their party (yet she is cleverly hidden away throughout the trailer).
One of the more interesting aspects of the combat that some may have missed was the concept of on the fly character switching.
The trailer never actually shows characters switching, but the L2 and R2 button markers on the bottom left-hand side of the screenshot above seem to indicate some kind of dynamic battle system.
Underneath the L2 and R2 buttons, you can see the names Tifa and Barret respectively.
Given that we see the player controlling Barret in the trailer (which was not possible in the original) and that Final Fantasy XV implemented a similar system, it’s safe to assume that we will be switching between characters whenever we see fit.