[Crazy Jetty]

Quote:

Originally Posted by DogFashionDisco

Yeah, as far as I know the Marvel ones aren't being released until after Christmas. Even the DC ones weren't supposed to drop so soon, my guess is that LEGO saw a boost in sales and wanted to meet the demand with some new product.

More likely, there's no hard street date like some movie toys (That specifically state "DO NOT STOCK BEFORE"), and stores are stocking them as they roll in from the warehouses.
The dates we're given is probably more like an estimate of when we can expect to see these.