In a Aptera reply in Wefunder they said their will be a hitch option although for very light use... no details on tongue weight or trailer haul weight, not how it will be accomplished...

By bye bye to range, but...Imagine if something like this My Pod could be an option. That might appeal to some.
( photo from bing.com)
I have a hitch on my Chevy bolt that I use for a bike rack or a small load carrier. Doesn't need to be for towing to be useful, although it would seriously mess with the aerodynamics and the efficiency not to mention it wouldn't look very good.
If there is a hitch on the Aptera, it would have to attach behind the rear wheel, and therefore it would be unsprung. I think it would be possible, but I have to think it won't be a high priority.
Not something I need... Surprised to read about it on the other site