I have the same hope too, but if Tales of the World: Radiant Mythology is any indication, we might be in trouble. Scott Menville (Lloyd) and Kari Wahlgren (Raine) were replaced by Brian Beacock and Tara Platt (Tara was Noir/Nebilim in Tales of the Abyss, among many other things) respectively. However, everybody's favorite -- Cam Clarke, as Kratos -- was still around, as was Genis' original VA.
Considering TotW:RM wasn't one of the main games in the series, there's still a chance they'll bring the heavy hitters back in. Either way, as Rexy said, the replacements are generally capable enough to not be a distraction.
Also, yay SoS.