Just watching Transformers 4 and I realized something. Back during my childhood an early Trsnsformers series included humans in exosuits and they transformed into the head of a headless Transformer. So watching the technology development going on in Transformers 4 where an operator can manipulate the base memory metal into any object...its a short step to human operators in non sentient Transformers.
So thats whats comming in Transformers 5. The convergance of man and machine.