Previously rumored, it looks like we have definite confirmation of our first cast member for 2018's Bumblebee movie. Hailee Steinfeld talked with news.com.au about her upcoming tour in Australia, during which she verified her involvement with the prequel movie. She also said that as soon as she gets back from Australia, it'll be time to begin filming. The movie currently branded as Transformers Universe: Bumbkebee is expected in theatres next summer, so this production timeline is just about on track. You can find a link to the news.com.au article below.
“I am so excited to know that is the next movie I am working on,” she said as the news broke last week.
“Obviously I’m coming to Australia and when I come back, we start shooting.”