Apparently, Bay liked Reynor’s Horatio Alger story and says so in the announcement he made on his website –
I just hired a great new actor for Transformers 4 to star against Mark Wahlberg. Jack Reynor, he is an Irish kid that came to America with 30 bucks in his pocket. Pretty ballsy. Seriously who does that? Anyway I spotted him in a great little Irish movie WHAT RICHARD DID. This kid is the real deal.
Bay also takes the time to address the rumor that the new film might be a reboot of the franchise –
Transformers 4, is not a reboot. That word has been floating around on the net.
This movie takes place exactly 4 years after the war in Chicago. The story makes a very natural transition, and reason as to why we have a whole new cast. This Transformers will feel very different than the last three. We are embarking on a new trilogy.
Transformers 4 is scheduled for a June 27, 2014 release.