Transformers One Trailer 2 made me change my mind a bit....

Fun fact, there's tons of similarities to TF prime in the TF one movie. First, airachnid and the vehicons, characters mostly only in TF prime, are in this movie. Second, the T-cogs are one of the main parts in this movie, just like how they were for two episodes in TF prime. Also, the composer of the music in TF prime is working for the music in this movie, which is cool