Square Enix revealed Two of Kingdom Hearts 3s New drive Forms.
The two forms are the “Guard Form” and “Power Form.”
In the Guard form, Sora transforms the Keybalde into a Shield. This Keybalde is from Hercules World.
For the Power Form, we have no info except it was edited to not spoil an new world.
We have no release window for Kingdom Hearts 3. In the mean time you can view some new info the Kingdom Hearts 2.8 to keep you alive-Link