From the pictures below, it's painfully obvious that Sony considers the XA2, XA2 Ultra, and L2 previous generation devices. (androidauthority.com)
The main problem is all of their new e-readers have different sized screens and feature higher resolution screens than the previous generation devices did. (goodereader.com)
O'Donnell said Apple's strategy will probably be to follow what the company has done with successive generations of its iPhone — substantially lowering the price for the previous generation devices. (computerworld.com)