Most of the new Skylanders and Giants will have the ability to light up in toy form. When placed on the Portal of Power, certain parts of the Skylander or Giant will glow. For example, Prism Break's crystals will glow green. This idea will hopefully make them more attractive when on the Portal of Power!
At E3 2012, the official trailer was released. Click to few the trailer. The trailer revealed many of the re-modelled Skylanders, a few Giants and a couple of new Skylanders! Below are some images:
Skylanders: Dimensions will introduce 16 Dimension Warriors who have powers similar to the SWAP Force Skylanders, except their powers are based off of the powers they got when they were fused with the energy of the different dimensions instead of their lower halves. The Dimension powers are: Sound, Light, Electricity, Freeze, Shrink, Fast Foward, Slow-Mo, and Invisible. Only Dimension Warriors with the correct power can enter special Dimension zones in the game. There will also be 8 new Core Skylanders, 16 new LightCore Skylanders, and 24 returning Skylanders with new names, new toy designs, and new Wow-Pow upgrades. Some of them like Frostbite Chill and Sizzling Spyro even have new appearance
Krager also confirmed that the Skylanders evil arch nemesis Koas is back and it’s up to the player to stop him from enslaving the creatures that live so peacefully in the Skylands. “The game comes out this October and we’re really excited about it. We’re gonna have over 50 new characters, over 40 capturable villains, new trap masters Skylanders, new core Skylanders, and every single Skylander, every single toy from the previous games will be fully supported by Skylanders Trap Team.”