While bending over and buying gas earlier today, I noticed that the station had put up a M&M "tower" with ROTS artwork on it. It was a cardboard thing about five feet tall, with Anakin on one side and Vader at the top on the front. There were little "bowls" that jutted out in front of the box slots that held the differently packaged M&Ms. I saw packages with M's dressed up as the droids, an M dressed up as Anakin in front of the moisture farm, but the number for my food order was called, so I didn't get a chance to look much closer.
What I did see is that they had several packages of the "Dark Side" chocolate M&Ms directly under Vader near the top of the tower. I almost bought one, but then I remembered that I hate dark chocolate. Also, there was no mention of the stuffed M-Peror (the one food tie-in that I really want) or M-Luke, or else I would have bought one to get the coupon for them.
So, if this is any indication, the food stuff is coming sooner than thought in unusual locations.