This modd will add features to flight since Elytra was added in 1.9
More features are intended to be added in terms of tweaking the flight so you don't need to keep shooting your bootey with Punch II enchanted bows.
There's an item called the E-Tank (will be renamed soon), use it instead to gain impulse. Only available in creative for the moment, maybe useful for map makers or use othr mod to add is a t loot.
You can also add your favorite banner design to your Elytra, and you'll have some fancy wings.