here is where you can download the HQ trailer (you have to right-click then save link as)
http://www.gametrailers.com/download...dline_h264.wmv
I dont know what some of you are thinking

but SO4 is going to be Awesome!!!
the graphics are astounding for CG and regular, the battle system is overhauled, the story looks great, SO MUCH WIN!!!!
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I have some theories...
first of all they showed 7 out of the 10 main chars for the game
the rest of the 3 will be 2 more females and 1 more male chars to make it a total of 5 male and 5 female chars, just like they done before in SO2 and SO3. and yes Crowe is a char, i dont think they have all of this moves yet. or he could be an optional char like in SO3.
since the story is before SO1, (SO1 is a few years storywise before SO2) im guessing that Ronnixis is going to make an appearance, but most likley not as a playable char.
from this and other trailers the battle system has more depth then SO3 so you could actualy string combos together, also making the bonus round system more advanced.
at 2:41 there is a scene of a scientist person with meracle. by looks alone he is similar to Dion from SO3 and Lezard from Valkyrie Profile, from that i also think that both dion and lezard's english voice actor (liem O'brien) is going to voice act for the scientist.
2:47 is a scene where they show a woman in a blue out fit with VERY familiar shoes (>_> i pay attention thank you very much) and a bad attitude. MOST LIKLEY Hrist/Lenneth Valkyrie from valkyrie profile is going to make an appearance.
I am 100% getting this game!