I don't see this 4IS being a BEV, and we've some information to back it up:
2020 BEV is the UX300e, and Lexus also stated this is going to be only BEV built on a non-dedicated platform, so for 2022 BEV we've some possibilities:
- SUV
- NX is coming up in 2021, so it's not it
- RX, LX, LF'1 seems unlikely to me, given their size they would require quite a enormous battery
- Sedan
- 4IS is rumored to come up this year, so it's not it
- LS a refresh is coming up
Check out my Toyota BEV
rumor thread.
I have to agree with you here. E-TNGA currently has 6 products in the pipeline by 2025: a compact hatchback, a mid-size sedan, a mid-size minivan, a mid-size SUV, a mid-size CUV, and a full-size SUV. They will have a lot more products planned for ChDM but those will share platform with local partners so Lexus will get none of those.
We actually know some details of three products: the mid-size minivan is comparable to Previa/Estima, the mid-size SUV is comparable to RX, and the full-size SUV is comparable to the Sequoia. Those three will be the first wave of E-TNGA coming in 2022. Unfortunately we don't know of any sedan in the works, so I guess it's a low priority project at the moment.
Now there is a tiny possibility Lexus is working an independent TM3-competitor project, but given the company's track record I am 99% certain it will be a rebadge. All but their flagships are minimum effort programs, we just have to consider that a fact now.
So which one of the three is most likely? Of course the RX-size SUV. With a 2850mm wheelbase it will likely also use the 'mid-size' battery pack which I assume is in the 75-80kWh range. Not very impressive but it will be in a sweetspot for cost effectiveness (100kWh is still very expensive for a $40-60k car) and with Toyota's highly efficient electric powertrain hit the 500km/300mi sweetspot as well. Now they could also make the Sequoia-size SUV with the 100kWh pack and finally satisfy US dealer's demand for a Escalade fighter. But I'm strongly convinced a Model Y fighter is the top priority. We all now Model Y is the next big hit in the BEV world.
The fact that they only have 2 E-TNGA BEVs before 2025 is very disappointing for me. It means no electric LS, LF1, GS, or IS. And then LS FC is also cancelled. They literally have nothing at the top with alternative fuel option. The parent company has adjusted their plans to a very aggressive 1 million BEV/FCV (but we know 95% of that will be BEV) by 2025, but Lexus only has three products by then. They will be nothing but an afterthought as the parent company goes full steam ahead.
The question really is: why not rebadge all Toyota E-TNGA BEVs? They will have a CT-e (one that I'm sure EU market is dying for), an IS-e, a NX-e, a RX-e, and a LX-e (USDM may really want it too) which will all be minimum effort projects. How much less effort do they even want to put in?