Here's a blurb coming from someone who was supposedly a Blockbuster employee until recently...
I was a Blockbuster store manager until a month ago. ALL of the Wii U games on the system are ENTIRELY speculated by the sales team, and are there purely as placeholders. I even advised the games team on a few of those, including Killer Freaks when I was in Uxbridge with my DM and regional manager.
Of course, some of the titles included in that list are bound to be spot-on, while others will be nothing more than the speculation they supposedly were in the first place.