Tern has a moved from the folding bike market to the electric cargo bike market and earns now much more money with these electric cargo bikes than with folding bikes.

The GSD is a top seller for Tern, the smaller HSD had a major upgrade for this year, its probably the announcement of the next GSD with a Bosch Smart System drive unit (Tern couldn't upgrade to Smart System end of last year because the Dual Battery wasn't available yet for the Smart System). The move to the Smart System doesn't really bring something for the GSD (excepted maybe the anti theft system with tracking and an even bigger battery capacity) but its mandatory since the previous System 2 will disappear for new bikes.
There will probably be other upgrades (maybe an increase of the max gross weight like happened for the new HSD, a Class 3 GSD like it exists for the HSD ?)

Now about the comparison of the GSD with competitors, yes its expensive but there are no other long tail cargo that combine all features of the GSD:
- first riding: that bike ride great, its not only stable and maneuverable, but its also incredibly fun to ride.
- there are accessories for all use: carrying children's, a second adult (its rear rack accepts up to 120kg), pets, all kind of baggage, bulky objects (there is a range of accessories for professional use of the GSD)...
- very compact storage only 176cm long, 83cm high, horizontal or vertical storage, it enter in most private elevators.
- very strong cargo drive unit with a long range due to the 1000Wh battery capacity.