KidsWB updated their website to add an all new Thundercats sub-section. The site features the intro video we’ve seen before, along with some screen caps. They also have “Party Packs” which you can download and print to use as an activity book for the kids, introducing them to the Thundercats universe and characters.
Thanks to GK Punk of the Thundercats.ws forums for the heads up. You can discuss it here: KidsWB Thundercats site (With PartyPack)