A friend of mine got a french pal Ps3 version yesterday (1 month before launch in france ?! ) and we played all afternoon so I'll post some more detailed impressions later.
So far : it´s fun to play, especially toybox with 2 players. The main games themed after the 3 starter pack characters look nice but with some rough textures on some objects. Some NPC have pixellated portraits that are maybe inherited from the wii or 3ds version (or from a choice to compress textures for faster loading.)
Some upcoming playable characters we spotted in the collection room :
Anna an Elza from Frozen
2 characters from Phineas and Ferb
Jack Skellington
Raspûnzel from tangled
Ralph and Vanellope from Wreck it Ralph
Mickey the apprentice from Fantasia
These (buyable) characters/figures are all visible once you play the game, and all have a little trailer. When you put a figure on the stand for the first time, a statue appears.
Edit: De-spoilered the names that didn´t need it (info in the op)