I heard on the @Wrangler4xefans podcast that they are working on making the Max Regen setting a sticky option (once activated it will just default to that setting the next time until you turn it off). Hopefully that will be available by the time the 2022s roll out of the factory.
Other things...
Things I'd be interested in would be - wireless integration with Andriod Auto or CarPlay, an upgrade that allows the powertrain to squeeze more miles out of the powerpack for electric only mileage - 3-4 miles would be great.