Last night I managed to locate a listing for another unannounced 6″ Black Series Deluxe figure via the Walmart app. It is listed simply as SW BL Deluxe Figure 1 without pricing. But with some additional checking via source TargetGod, I was able to confirm the price of $29.99 making it not exclusive to either store.
There is a second deluxe figure as well and will update with more info when located.