3.58 also gives display errors when !! is used inside a dialog. As far I know, master of Puppets and TPM will be playable through ERA only, right? I guess that will be the moment to switch for everyone. The problem remain the difficulty to install for some people without knowledge.
The best way would be to rebuild a new WoG version, include ERA/TE, patches, and delete all the 3.58 around. Or eventually a WoG switcher , as Hippocamus did.