@ukigh4ie
Regarding updating ScummVM to 2.5. I have tested this version through both HBC and WFL & results are not good.
Only testing 3 games... "Beneath a Steel Sky" both CD version and Floppy version, also tested Indiana Atlantis. All 3 games lose cursor function while navigating testing multiple times.
ScummVM 2.2.1 (version currently in the plugin pack) does not have the issue but yes, exiting any game does not take me back to WFL, instead to Wii System Menu.
The ScummVM version 2.2.0 git Nov 4 2019 (what I have) does not have cursor issues and when exiting any game returns back to WFL.
My cfg.ini is edited different...
dolfile=apps/scummvm//boot.elf
I have not tried this change with 2.2.1 to see if it will fix the Return To Loader problem yet but will try this. IIRC, Blade Runner would play for me with issues using 2.2.0, but have since lost the file. I believe it was a very early release with support for that game. Anyhow, I will test 2.2.1 with above cfg and post results.
Edit:
After testing 2.2.1 with cfg, I am still sent back to Wii System Menu when exiting game. I am not positive how stable 2.2.0 git is or compatibility, but it does not have Return To Loader Issue or return to WFL after exit issue or cursor loss issue. I can send you my files if you would like to test this version and make it available in the update pack (soon to be released) as an optional install over the existing ScummVM plugin.