I've been wondering about the escape mechanic in the game, and thought of of a way to implement it! Just a suggestion.

How about you set it so if nobody in the party gets hurt for 3 turns straight, you'll be able to "quit" the battle, revert to real-time, and run off while the enemies stay frozen in place for a few seconds and let you get away? Naturally, if you enter the area of engagement you'll trigger the battle mode again.