Is that Estelle narrating the first video? She sounds kinda different, but not nearly as different as Rita. I don't know how long it takes place before the game but the voices still sound off.
Still, they got Troy Baker and Sam Reigel back and those are the most important two. Hell even if only Yuri's voice stayed the same I'd be okay with it.
--
You have no time to ponder such questions, as Link has just grabbed a Smash Ball.
http://backloggery.com/herodeltiempo/sig.gif