I wouldn’t count on any Simpsons characters appearing though, especially now with the family under the Disney umbrella.
Gunderson is the same last name as the franchise’s down-on-his-luck character Gil, and while there isn’t a lot else that points to Springfield, there’s a chance Matt Groening could be using Disenchantment to bridge a gap between all of his original animated shows.
For the record, the name Gunderson could also point to a reference to The Simpsons.