The CEO himself said in an interview that they have a battery update cadence that is running late currently.
So, this suggests that they're working on their next generation battery, but for whatever reason we haven't seen it yet. If they were targeting 2021 (they announce next years' models in the fall/October but they've also had off-cadence releases like the SRF and SRS), COVID-19 might be hampering the R&D or OTOH they might be able to better focus and maybe it's going faster.
I mean, I'd love to have a bike that cracked the 20kWh benchmark without compromising on battery life, and if we're lucky, mitigating battery heating with charge and discharge cycles.
Right now, I have to admit that the 18kWh on my 2020 DSR with Power Tank is really nice, so I'm focusing on aerodynamic upgrades to get more range out of it. I average 135 miles per charge right now on the highway, and am really hoping I can push it out to 160 miles.
With a 20kWh pack, fairings, and DC fast charging (even 1-1.5C), that magical 200 mile range per charge starts feeling within reach, even if it'd still be a stretch, but that's the number at which most motorcyclists would stop holding their noses.