Yet further proof a trailer (now confirmed for Tuesday) is coming this week as the first new poster since last September for Transformers: Age of Extinction has been released. This one features Mark Wahlberg, as Cade Yeager, carrying a Cybertronian key/sword (or gun considering how he is holding it) McGuffin. Of note is the tag line "The Rules Have Changed". I assume this is one of more that will be released over time.