We first showed you this prototype a few days ago in robot form. We now believe this is a prototype of the upcoming Transformers: Armada Decepticon Tidal Wave with Ramjet mini-con. We however have no offical confirmation on that so this is only speculation. As you can see from these pictures he transforms into 3 different sea faring craft that then combines into one larger warship type vehicle.
Also here is a look at his mini-con Ramjet
These are early unpainted prototypes and are subject to change in appearance from what is shown here.