The Rav4EV has much more potential than its sale numbers reflect. If Toyota actually wanted to sell it, they would sell very well. If Toyota did the following, the RAV4EV would easily outsell all other plugins:
1. Replace the resistance heater with a heat pump (would give the vehicle a real world 100+ mile range in standard charge mode in all but the most extreme climates)
2. Cut the price down to < $40,000. Toyota routinely offers rebates bringing the car down to this price, simply officially bring the car down to this price, and drastically more people will look at it. The $50k sticker price keeps away allot of buyers.
3. Make it available to the entire country.
4. Brag about the fact that it has Tesla internals.
5. Add Level 3 Charging.
6. Offer an optional leather interior.
Even without these changes, if the Rav4 EV was available in Ohio, I would likely be driving one instead of a Volt right now.
The biggest problem is that Toyota isn't interested in selling the Rav4 EV except as part of the ZEV compliance mandate. If they really were interested in selling the car they'd be seriously coming to Tesla and designing a vehicle that will sell like crazy with all the features you listed and more.
And to bring it back on topic, this continues to give Tesla the positioning they need to really grab a big corner of the EV market. Nothing on the horizon looks to compete with the Gen III/Model E, and nothing looks to grab the G3X market either. Tesla will be ruling the EV world by 2020 with the big boys playing catch up.