The upcoming Ratchet & Clank Collection may boast three PS2 titles from Insomniac Games’ comical platforming franchise, but it doesn't include the full set. Indeed, the compilation is missing out on the co-operative Ratchet & Clank: Deadlocked, which launched relatively late in the PS2’s lifespan.
Thankfully, while Deadlocked doesn't come bundled with the aforementioned HD compilation, it seems Sony hasn't scrapped plans to release the forgotten fourth title on PS3. A Japanese trailer for the collection concludes with a teaser for a PSN release of Deadlocked. It’s safe to assume that if the title’s releasing in Japan, it’ll also launch in the West.
You can admire Ratchet’s exaggerated Japanese eyebrows in the trailer embedded below.