http://bugs.winehq.org/show_bug.cgi?id=55981
--- Comment #18 from Hans Leidekker hans@meelstraat.net --- (In reply to Matthew from comment #17)
Mostly posting this because I saw the recent Brodie Robertson youtube video "Maybe Fedora Linux Was Right All Along" which raised the possibility of all gaming being funneled through WoW64, and wanted to bring up the warcraft 3 world editor as an example of software for which that still doesn't work and workarounds like dxvk also don't work. The video was ambiguous over whether win32 Wine prefixes would be dropped entirely; I got the impression they weren't but wasn't sure.
The new wow64 mode requires a 64-bit prefix so you need to reinstall the apps. If a distribution decides to keep 32-bit support alive then you could also just stay on an old wow64 build.