According to various character people in the know (drew81, raxip on wdwmagic and Berlioz70 on the Dis amongst others) there will be some character changes starting sometime in May in WDW (mostly in the Magic Kingdom).

In the Magic Kingdom:

Ariel (human) and Prince Eric! will be taking up residence in Adventureland at the Veranda (replacing Lilo and Stitch).  This means Ariel's Grotto will be closing to make room for the Fantasyland expansion.
Goofy will be moving to Pirates of the Caribbean (hopefully in a pirate outfit)
Wendy will now regularly be joining Peter in Fantasyland
Mary Poppins and Bert will be in Fantasyland near the Carousel
Snow White will be appearing near the wishing well by the castle
Chip and Dale will be moving to Tomorrowland (hopefully in their outer space outfits)
Stitch will be returning to Tomorrowland
Winnie the Pooh and friends will be moving to Town Square from the Pooh Playful Spot (also tied to the Fantasyland expansion work)

In DHS:

Lotso (from TS 3) will be replacing the Up characters in the Animation Building
Jojo and Goliath will be leaving Playhouse Disney

In AK:

Carl and Dug will be moving to the Oasis and appear there randomly
The character in Africa will be leaving (some of which will become random in the Oasis)

In site news… we continue to add stuff and work on pictures… Dan is currently working on WDW pictures while I am working on Disneyland Paris pictures from Feb… I have added a Valentines Day at Parc Disneyland page which has a lot of pictures of the special Valentines Day characters up now :)

Also, we want to have various character news from across the parks on our blog.  So if you have information and or rumors about upcoming character changes please let us know ([email protected])… we are happy to give you credit (or not if you wish to remain anonymous) :)

Thank you!
Jon