I do enjoy the Japanese/Greek-Roman aesthetic they're doing now. Not sure if I could go back to the "old" way of doing things, where you didn't have a world map and had to play through the missions as they came, but I'd still enjoy it regardless.
One thing I was hoping to see from the Team Attacks was an attack where both the units combined their attacks for a stronger hit. Like maybe two mages combining magic into a bigger attack, that sort of thing.