A tweet from Reno Wilson suggests that Brains survived the Cybertronian ship crash in Transformers: Dark of the Moon. Below is all the info available, speculate away in the comments.

Just finished a v.o. session for Michael Bay, who is a genius! Each one better than the last! #Transformers4 #Brains

— Reno Wilson (@R2theENO) January 14, 2014