Did some more research on how WINE is planning to handle Catalina and found one of their discussions. CodeWeavers (uses WINE under the hood and who SE uses to run FF14 on macOS) is working on the issue but I'm not holding my breath that it'll be done by the time Catalina is released.

The number of changes Apple made under the hood made the move to Catalina a hard path by preventing all 32bit programs from running.

WINE HQ Discussion on Catalina