Unfortunately there is not going to be an update for AmigaOS 4 (in the foreseeable future, at least) as my AmigaOne machine (the only AmigaOS 4 machine I have) suddenly stopped working and I just do not have time to try the emulation or cross-compiling route. That said, the fix is just really a matter of polish - the game is perfectly working and usable also without it.
As for the MacOS version, supporting multiple version is very demanding, so it was not an option.