Re: Will CC Generals on the MacStore will be updated to run on the Catalina OS?

Yes, see my post here: https://answers.ea.com/t5/C-C-The-Ultimate-Collection/Catalina-macOS/m-p/8309663#M17046 They plan to release a 64-bit support patch to bring support for MacOS Catalina somewhere in the future. It is not EA that will do this; Aspyr is the maintainer of the MacOS-version.