Hello Modcraft.
The guy who work on the WMV project is actually updating his WIKI page with the new WMV. And it's supporting CASC files (yes, some bugs are still here, but it's in ALPHA on the WIKI (Scroll down to "Early Access".)
Of course, i'm not the creator nor the guy who updated WMV, just a random dude who seen this, and wanted to share it with some community, you know, sharing.
Here it is :
https://wowmodelviewer.atlassian.net/wi ... del+ViewerAnd hope it's help you. And if it was already on the forum, so didn't seen it. But in this case, sorry. (:
Goodbye !