Other than mixing up the name Gyro with Gizmo, I see where you are going. Gyro Gearloose will likely be a villain at some point.
The Gizmoduck suit makes sense for him to make, since he made it in the past installments. I thought he wrote this down in his notebook he would make such a suit.
Now that you mention he wrote “I become robot” and “Blatherskite” that confirms it. Blatherskite is the activation code for the Gizmoduck suit.