What could be coming up soon for Kingdom Hearts? Jesse McCartney, Roxas voice actor for the English-language side of the series, tweeted a photo of a mic and an image of Roxas on a monitor, pair with the text "recording for the next chapter" (via NeoGAF). Both have been removed, but that only further fuels the speculation.
Joystiq's Mike Schramm suggests that McCartney is recording dialogue for a North American release of Kingdom Hearts 1.5 HD Remix, an HD collection that will be coming to PlayStation 3 in Japan on March 14, 2013. The collection packs together three games -- Final Mix, Chain of Memories, and 358/2 Days -- into one package. Nothing's been officially confirmed, but don't be surprised if that changes in the coming weeks/months.