In the interview, Sonny mentions that he is in fact doing sound design work for the next in the series of Transformers films, adding that there will be “the craziest Skrillex sounds I could ever make.” This most likely deals with the actual transformation sounds the sentient robots go through when going from vehicle/animal (there’s a T-Rex in the new one… RExcsion?) to humanoid form. (Geeky, eh?)
This will not be the first time Skrillex has worked on a film. In fact, in 2012, he was actually featured, albeit animated, as a sort of extra in the Disney film Wreck-It Ralph. I doubt he’ll make such a cameo in this film, though it would certainly be hilarious to see him running through the streets of whatever god-forsaken town the Decepticons happen upon.