The version which I would really like to see would be a native distribution for the Raspberry Pi of the Oberon Workstation environment --- apparently there is a problem with the drivers which makes porting difficult.
Oberon System 3 works on Raspberry Pi:
https://github.com/rochus-keller/OberonSystem3Native
Oberon System 3 works on Raspberry Pi:
https://github.com/rochus-keller/OberonSystem3Native