At nearly double energy efficiency, nobody will care much about the weight of the batteries. Some airplane design changes due to no longer being able to take off heavier than they are allowed to land (this is common on long hauls) but the design changes also likely change due to better placement of thrust and its weight (engines go almost anywhere the designer wants), and better control over location of the weight (batteries aren't liquid and don't slosh around, and a sloshing liquid also has negative aerodynamic effects.)