Wave 3 of the Transformers Generations Combiner Wars toyline confirmed by Hasbro.
 
 
The six Autobot Protectobots and its combined form Defensor (each component is tagged) updated after exactly 3 decades since their G1 debut:  
>The group leader Hot Spot (fire engine; centrepiece/core)  
>Streetwise (police car; left leg, can also be any other limb)  
>First Aid (ambulance; right leg, can also be any other limb)  
>Blades, essentially a repaint of the earlier Autobot Aerialbot Alpha Bravo toy (helicopter; right arm, can also be any other limb)  
>The newest member Rook (SWAT mobile; left arm, can also be any other limb)  
>Groove (motorcycle; chestplate, originally a limb component back in G1)
 

 
Why Rarity and the Autobot Protectobots? Personal reasons.