Alonso has many reasons to upset the apple cart, both at red bull and Ferrari.
My opinion, he is stirring the hornets nest, as he thinks he is in a no lose situation. Attempt to get under vettels skin, put a rocket under the Ferrari team, from what he likely feels is a position of strength. I do not think he will be at red bull for 2014, however, I think we could see a swap in 2015.