I solved the mystery of the Battle Droids in the new 2013 Yoda-packaged / green boxed mini-vehicles showing up at Toys "R" Us.
I thought they might have been the old Saga Legends mold from a few years ago with plenty of joint articulation but with a brand new head with sculpted eyes. Turns out they're the Battle Droid mold from the MTT Troop Transport, the one with just five points of articulation (neck, shoulders, hips). The one packed with Obi-Wan was simply repainted with blue Pilot markings and the one that comes with the Clone Gunship Pilot was repainted or remolded red. They have no elbow or knee joints whatsoever, so if the poseability of your droids matters you might want to skip these new sets.