Amazon has a pre-order listing for the 3D of Fantastic Beasts: The Crimes of Grindlewald that seems to be another 3D + Digital only (no flat blu-ray). On the other hand, their pre-order listing of the 3D The Grinch seems to be the full package including blu-ray.
Not sure if one of these is...
Not sure. The UK listing for The Meg 3D lists the following:
Extra Content:
DVD
Chomp on This: Making The Meg
Blu-ray:
Chomp on This: Making The Meg
Creating the Beast
Shooting in New Zealand
But the current cover shown does not indicate what discs may be included in the 3D package.
I...
Return period on The Meg for Amazon seems to run until Jan 31, if anyone wants to return the Amazon version and buy elsewhere. Just be sure not to open the shrink-wrap.