With Transformers 4 on the way as a serious sequel to Transformers Dark of the Moon, Michael Bay will be sure to have a new wave of decepticons appearing and 4 new ones that will be replacing the deceased Megatron, Starscream, Soundwave, and Shockwave. While Skyquake is yet to appear in the fourth installment as the main villain, the decepticon Cyclonus is expected to appear as one of the main decepticons in the last two installments. Now, here is a concept art of what the character would look like if Bay includes him in the 4th and 5th installments.
While on Earth, Cyclonus may not have an earth based aircraft mode so his alternate mode will probably remain cybertronian. Here is a fan art of what the character's cybertronian jet mode would look like.
Be sure to keep track on what Michael Bay has in mind for the fourth film too.