Another Vacation Hint? (Pic Included)

It's not an obvious hint to anything. They just released some Australian themed holiday items in the free patch, and since this is a holiday sale announcement, and directly features the holiday items just released, it would be speculative to use this as evidence of new and as yet unannounced future content.

I'm not against a beach themed pack, but this doesn't pass the Occam's razor test. There are more likely explanations for the available information.