There are two reasons why this game can't exist:
- PopCap is busy with Peggle Blast, Bejeweled, Plants vs. Zombies 2 and Garden Warfare 2. If you're wondering why Bejeweled is here, its because they are still working on the mobile version of it.
- Codex's Magic Pen is gone, which is used to transport Lex to different books. Although you can the Rifts, the enemies of Astounding Planet are already defeated, so they can't probably make more Rifts.