Here's what's going on in my area. The Luke does not show up on brickseek at all. Every store is 'Out of Stock'. The Yoda, however does. BUT. Just because it's in stock doesn't mean it's on the floor, because the employees have to find a space for this giant floor display. So, if I see Yoda at 6+ quantity on brickseek, it means they have the shipper, but haven't put it out. I went to a store on Saturday that showed Yoda '2-3 in stock' (they sadly don't do exact numbers anymore?), and I went there, found the shipper, and the Luke, but no Yodas. The shipper is HUGE in it's fully formed version, and I'm guessing that's why it's not being put on the floor at most Wal-marts, right away.
Also, there's a second wave of those gold figures for prequel characters. I'm guessing they'll be a third wave 'Next Month' for sequel characters.