When Villager first releases a Lloid rocket, it moves very slowly and then accelerates to a faster speed. If Villager pockets a Lloid rocket moving at full speed, when he releases the rocket will it still move at full speed?
No, if Villager pockets a Lloid rocket going at full speed, when he releases it the speed will be reset. It would be as if Villager just released the rocket for the first time: it will start slow and then accelerate to full speed.
This is because Villager's pocket resets projects to base damage before adding the damage multiplier. Resetting the Lloid rocket's damage also resets the speed, essentially forcing the projectile to start all over again.