The amount of work Taylor Lautner has been reeling in has been very impressive. It’s not too surprising that two of his hottest projects came into conflict with each other. According to New York Vulture, Taylor has had to scrape his plans to play Max Steel and is now just focusing on the Stretch Armstrong project. The whole things boils down to Hasbro vrs Mattel. In the end, Hasbro has the better track record and thus sealed the deal with Taylor.
From the article: Explained one insider familiar with Lautner’s decision: “When you sign up to make a movie with Hasbro, you know it will be in theaters a year later.”