Back with my controlled raging,
I do believe that these legendaries don't have the same feel that Dialga & Palkia gave us. I mean, Dialga & Palkia control time & space. There's nothing more epic then that (unless, you know, Zekrom controls night & the moon and Reshiram controls Day & The sun. Even then, Game Freak will probably go against our expectations)
When the starters came out, I was surprised. I believed that they were poorly designed. However, they've kind of grown on me. And God knows we can already predict Pokabu's evolution line - they made it too obvious.
Reshiram & Zekrom don't look like Dragons to me. Not at all. I couldn't really imagine them being dragons. It'd be repetitive, seeing as how Dialga & Palkia were Dragons, as well as Giratina. If they do end up being dragons, I'm going to lul at Game Freak for being unoriginal.
Right now, I'm just hoping that they have legendary pokemon based off constellations - either the Chinese constellations or the Zodiac.