[MonSoon12]

Currently I'm also using Movie Set Artwork Automator to set/update my Movie Collection/Sets.

My naming convention is:
Main Folder: Iron Man Collection
Iron Man (2008)
Iron Man 2 (2010)
Iron Man 3 (2013)
banner.jpg
clearart.png
fanart.jpg
landscape.jpg
logo.jpg
poster.jpg

Movie Set Artwork Automator will automatically pickup my local files (from the main folder) and use them.
The only thing I haven't figure out is getting it to use extrafanart while viewing it as a movie set.
With the changes you are planning for MC, does it mean I will need to change how I have my collection/sets named?

Currently still using Artwork Downloader.
I read here talk about Artwork Beef, downloaded + installed and it has so many more functions! I just set it to Add Artwork after Library Updates and to not automatically download artwork from web services, only identify local files.

I tried for a new movie I added using the naming conventions discart.png and clearlogo.png. My Kodi (17.6) didn't automatically pick it up, so went back and renamed it to disc.png and logo.png.
And ran Artwork Downloader to pick up local files. I see if you move to discart.png and clearlogo.png, you will add a renaming function. Great! that you took users like me that use the alternative naming convention into consideration

Also from the wiki, it says Kodi will pick up posters & fanart from movies files in a single directory:
Single movie in directory: poster.jpg/png
It doesn't for me, it has to be: <NameOfVideoFile>-poster.jpg/png
I see that is the default for Kodi, so I'm renaming all of them to this naming convention.
Unless someone can tell me what I'm doing wrong?

Also I use Trakt.tv to track my movies and series/shows. Just wish I could pull ratings from trakt.tv instead, sometimes find it more reliable then IMDb.