Board Thread:Plants vs. Zombies 2: It's About Time/@comment-7234182-20150322064110/@comment-7234182-20150402005845

The most obvious evidence for this is the fact that with each new release, the new names are present but there are no models/textures. They removed those from the release version so we don't know what they look like, but deliberately left the names in there to generate the buzz. If they wanted absolutely secrecy it would be very easy for them to clean up everything, including the names.