Soon happening in a Super Cup near you I imagine...
Tbf Spain "only" started with this Supercopa nonsense in SA in 2020 when they've changed format to Final Four (best two teams from the league and Copa finalists). Before that they were playing home and away games between La Liga and Copa del Rey champions.
OTOH Supercoppa Italiana has been played almost regularly abroad since 2009. First in China and then Qatar and Saudi. Similar with Trophee des Champions (French version of Super cup) which has been moved all over the world from Canada to China, Austria, Israel and Gabon (yes, I was surprised too when I saw that) in last 15 years.
I don't see DFL-Supercup ever being played outside of Germany but we'll see how long the FA will resist before playing Community shield abroad. I think it's inevitable and will happen in next 5-10 years.