[Wintermute0110]

Note that AEL is a Kodi addon and what you propose implies making changes on Kodi itself.

But if AEL can launch a pc game from the hard drive via script wouldn't it be possible to to add code after that to show fan art from the hard drive in full screen wait 60 seconds then close it?

AEL can launch any executable or script. You can create a BAT/CMD script that calls an app to display the fanart and then launch the emulator/game. However, the effect won't be as nice as a dedicated application to do that. For example, recently Retroarch included such effect. When launching an emulator the screen turns black and the name of the core and the ROM is displayed. After a few seconds this image, kind of an autogenerated fanart, fades out to the ROM running. This is possible because the feature was coded inside Retroarch.