I personally find the limit break in this game is a little bit boring.
It should be much more exciting to have a limit break that involves all the party members performing a combo attack.
To start, it would be something that look like this:
https://www.youtube.com/watch?v=LHbwthliHQw
or that:
https://www.youtube.com/watch?v=IYkzIeoqUL8
One of the player can initiate the combo, then all the players will have to participate by making certain input responses. This will result a chained party limit break combo that will deal different impact depending on the involved players and limit gauge consumed.

Would that be a great idea?