Personally, I found the original animation from the Deceived Cinematic Trailer to be completely awesome. I had heard rumors of the game, but didn't know about it until the trailer was pointed out to me by a friend. Once I saw it, I was hooked.
Darth Malgus is a good character with an interesting background. From the initial ideas you got in the three trailers to the novel, he has a very well defined character. His armor is very Darth Vaderish, but still retains the look made popular with the KOTOR series of games (more padding than armor). Finally, he has a twi'lek wife/slave... Who wouldn't like that?
The character of Satele Shan, first introduced in the Threat of Peace comic series was an interesting addition. The descendant of Bastila and Revan, her powers made her seem a little important. However, with her inclusion in the Hope Cinematic Trailer, she was shown to have almost Unleashed abilities (the final blow in the trailer). Finally named in the Return Cinematic Trailer, she appears to be quite the character.
Overall, the technology does appear to be borrowed from both the OT and PT. The shock troop armor of the Sith is very reminescent of the OT stormtroopers and the Republic Soldiers have the Clone look going on. Even the soldiers from Deceived appear much like the Rebel Fleet Troopers and Hoth Troopers from the OT.
The smuggler/gunslinger is just plain awesome but looks to be a cross between Cad Bane and Han Solo as played by Clint Eastwood. His ship is a good cross between the Millenium Falcon and the Ebon Hawk. Finally, his character is made 3D by the glance he sends toward the female twi'lek that walks by in the beginning of the Return Cinematic Trailer.
Overall, the trilogy of Cinematic Trailers gives a good look into the background and story of the game, as well as a look at what to expect from the gameplay (though with lower graphics). If nothing else, they are very eye-catching and will draw attention to the game website.
Finally, this also shows what kind of a wimp Luke Skywalker is. When the Emperor is attacking him with Force lightning, he is whimpering and crying for his daddy to help him. The Republic Trooper, on the other hand, draws steel to gut himself a Sith.