Seven films in and the Transformers franchise shows no sign of stopping . The next films will be taking a different route than the last few, Transformers: Rise of the Beasts will apparently be taking some of its plot elements from Transformers:Beast Wars.
And the lead role of Optimus Primal will be played by Ron Perlman !
Primal is a distinct character from Optimus Prime but both are well respected leaders of their own factions.
With his distinct vocals I think Perlman will be perfect for bringing this character to life.