I saw the Sneak Peak!! I love Clemont's voice, it's the only tolerable voice. I also loved how Clemont asked Bonnie "Did you think Pikachu liked it?" I'm so glad he doesn't shout "The Future is now thanks to Science!" to the heavens like I thought.
I did too this morning. It was great to watch and voices fit the characters well, including the Pokemon. Yeah, you know, those things remind me of something Cilan would say. One minor issue for me was the pronunciation of the character's names. To me, Bonnie sounded like 'Barney' and Clemont sounded like 'Clement'. (Although Barney is probably due to the American accent, as I also thought Dawn sounded like 'Darn'.)
Yeah his voice tolerable. When Clemont asked "Did you think Pikachu liked it?", it reminded me of a preschool teacher talking to a child about handling something gentle like a little animal or a baby (the way how he said it in a calm voice). Clemont has the qualities you should have with children: patience, being calm, and considerate.