It seems he has finally decided to come out and play!!
The photo is on laughing place.. can't post a link unfortunately..
Unfortunatley it seems that the bungee rats are gone from the Ratatouille float, and same with the toy story float acrobats. Hopefully they will return. Check out LP for the update.
Also stated is that they are just checking the riggings on each float to make sure each cast member who is in an acrobatic position is safe.