After thinking about it, I think I have a timeline that may explain all the weirdness going on with the reporting of Drake/REDACTED:
- 2019: Nintendo tests Mariko overclocks for a Switch Pro, but they disappoint and decide to use the new chip for longer battery life. They and NVIDIA start development on Drake, meant for a Pro. They target 2022 internally, with the Pro/REDACTED being used as a pitstop between the Switch 2 release in 2025-2027 so the hardcore base doesn't go insane.
- 2020: COVID happens and fucks over everyone.
- 2021: First credible whispers of REDACTED emerge from Bloomberg, but Mochizuki gets his wires crossed with the upcoming Switch OLED. The OLED has 4k output technology, but if FW datamines are any indication it was always intended to just be a premium Mariko. Later in the year, Bloomberg reports that they have talked to 11 devs with REDACTED devkits, infuriating Nintendo.
- 2022: Intended launch year of REDACTED. Games like Pokemon SV and Bayo purposefully de-emphasize optimization because they know improved hardware is coming. However, Nintendo pulls the rug out from under them by delaying REDACTED to Holiday 2023 partly due to logistical issues caused by COVID (pushing what was originally intended to be Switch 2 to 2030 or something), and repositions it as the actual Switch 2. The repositioning is used as an excuse to crackdown on devkit access following the "11 devkits" report, giving mistaken impressions that Drake/REDACTED has been cancelled.
I don't think T239/Drake was ever intended for a "Pro" model of any kind. Neither the hardware itself nor the timing make sense for it to be used in that kind of model.
From a hardware perspective, T239 is absurd overkill for a "Pro" model. If the expectation was a device which could play existing Switch games at 4K, there would have been two options. The first would be to take the existing Maxwell architecture of the original Switch, and basically just make a bigger TX1 GPU, perhaps 6-8 SMs. This could natively run Switch games at 4K (or close to it, depending on the game) and would be simpler for developers, as their Switch games are already well optimised for the Maxwell architecture. The second would be to take a newer architecture, like Ampere, and instead rely on DLSS to get to 4K. In this case you could get away with a smaller GPU (say 4-6 SMs) as you don't need to hit native 4K, and can let DLSS get you there. This is more work for developers, though, both because of the change in architecture from Maxwell to Ampere, and to a lesser extent the need to integrate DLSS.
T239 has 12 SM Ampere GPU. It is simultaneously bigger than it would need to be to brute-force Switch games to 4K natively, while
also using a new architecture that's capable of DLSS. As a chip designed for "Switch games, but in 4K", it is complete overkill. As a chip designed for a successor to the Switch, it is quite sensible. Even aside from the GPU, we know it has an 8 core CPU, using a much newer architecture, which would be wasted if every game also had to run on the Switch. Ditto with the File Decompression Engine, which was custom-built for this chip and would make little sense for a "Pro" model.
In terms of timing, it seems that T239 was taped out in early to mid 2022. That makes plans for a 2022 launch very unlikely. Nvidia's Ada GPUs, taped out at around the same time, had around an 8 month gap from tape out to launch, but they're pretty low-volume launches. With a need to stockpile a few million units for the launch window, it's unlikely Nintendo ever would have planned a tape out to launch window of less than a year. As it currently is, we're looking at a year and a half or more between tape out and launch. As such, the latest that Nintendo could have reasonably considered launching in 2022 was H1 2021, and that would have been if the chip's design was already complete and ready to tape out.
A late 2022 launch would have been very late for a "Pro" model, in any case. The two times Nintendo has done this before, the DSi and n3DS, were launched between three and a half to four years into their life cycles. This would be five and a half years in, and actually would have come at a point when Switch was already older than the NES, SNES, N64, Gamecube and Wii U were when they got replaced. Nintendo has acknowledged in recent investor calls that the Switch has been around longer than almost any of their previous hardware (talking about being in "uncharted territory").