Actually, Cartoon Network claims episode 1 will be titled "Following a Maiden's Voyage!"
Episode 4's name seems close to what you speculated though it's "Dawn of a New Era!" with the Dawn part seeming to be a pun on Hikari's English name.
The new season should start airing on Cartoon Network around the time of Pokemon Battle Revolution or before, this summer.
EDIT: Pokemon.com just revealed today that there will be sneak peak of the English Diamond and Pearl anime, April 20th on Cartoon Network. However no time was mentioned. Mostly likely, this will only be the first 1 - 4 episodes, possibly not even a full episode as it was said to be a 'sneak peak', and then the series will start airing anywhere from, oh ay, May to Early Summer considering this preview will be out two days before the games.