Well, there are certainly enough trademark WOTC monsters in RARE that this could almost could as a Rappan Athuk design diary...I am interested in how you guys are going to work around that one, Phase Tigers and Mind Eaters?
We're not telling the answer to that question yet. However, based on discussions held today at the water cooler in the Rappan Athuk Staffroom, I think I can guarantee that it will be an unpleasant surprise for the player characters and a treat for the DM.Sorry, that's DM(TM).
You could call 'em "coeurls", after the A.E. van Vogt critter that Kuntz borrowed the displacer beast from. Looks a bit like something you'd type into a new kind of web browser, though.
Particularly the Mavel Comics version.
Or "the cat-things from dimension X".
WotC trademarked "authors" so now anyone literate who puts pen to paper has to submit to bowel searches and wage garnishments.