Thanks to a tip and a series of e-mails from fellow collector Burnell, I was made aware of several 2015 Topps Phillies variations to be found within the Topps Bunt App. I have no idea how this App actually works, but I do know that it seems to be very popular. From the official description from the Topps website:
Topps BUNT is the only real-time, real world Major League Baseball digital trading card game where the cards you own and collect earn points based on how your players perform on the field each day. Download BUNT for your iPhone, iPad or iPod touch on the App Store.Burnell sent me the scans shown in this post, and based on these cards I may have to give the App a try in 2016. The design is the same as the 2015 flagship design with the exception of the Phillies "P" replacing the primary logo on the front and some dots appearing along the right borders. Several Phillies players who were inexplicably omitted from the 2015 Topps Update set have cards available through the App, and I'll probably eventually print these to be added to my 2015 Phillies binder.
Interestingly enough, the images for Luis Garcia and Severino Gonzalez are swapped.