Michael Bay has recently updated his official twitter page with a photo of a brand new character that will appear in Transformers 5 : The Last Knight. The latest character announcement is none other than Onslaught. Although it doesn’t confirm that Bruticus will also be making an appearance in the film it is cool that another well known Decepticon will be joining the team in the film. Transformers 5 : The Last Knight will premiere on June 23, 2017.
— Michael Bay (@michaelbay) July 27, 2016
Source : Michael Bay Twitter