Activision is not listed in the registration data, but Mark Monitor is the credited registrant, and Activision has used Mark Monitor many times in the past, including skylandersgame.com.
You can poke around Activision's registration activities here.
Toy Fair kicks off on February 12 in New York, where Skylanders has been featured in the past. Not all toys for the game’s initial release have hit store shelves yet, so an announcement at Toy Fair next month might be premature.
Additionally, there’s a Twitter account called @skylandersgiant that’s retweeting stories about the domain name registration. It’s unclear if it’s an official Activision teaser or someone just fanning the flames, however.
I’ve contacted Activision about this Skylanders Giants business, but haven’t heard back.
When I looked to my right, Jeff Gerstmann could not be found, either. Must be coincidental.