A few people say it’s not happening (such as Doug Bowser, the American Nintendo president, as well as a few analysts), but others claim the opposite.
SciresM, a known console hacker and data miner, shared what he has found on the ResetEra forums: „Nintendo is working on a new model with upgraded display stuff and has been for ~1.5-2 years. I believe it’s 4K given the signs I’m seeing in the firmware, but that’s not confirmed yet and could be wrong.
The new hardware is codenamed Aula, it’s using a Mariko SoC (system-on-a-chip). There’s a bunch of references to it in code (atmosphere supports the new display already in theory). Aula explicitly supports handheld mode. It is not docked only; that’s Calcio [another hardware codename], which seems like it’s for internal-only/never releasing since Calcio has no game card slot and no battery.
The tablet itself has an upgraded display, I don’t know if it’s 4K. Aula has firmware support some Realtek chip that advertises itself as a „4K UHD multimedia SoC,” too, hence my belief it’s 4K. That chip might be inside a new dock and not inside the tablet, though, there’s no way to tell from the firmware code yet. [I] checked my previous discussions with hexkyz, the upgraded tablet display is an OLED screen. Probably not a higher resolution on the tablet itself, so I guess the 4K Realtek chip is more likely to be new dock than I thought it was.
Mariko has *substantially* better cooling and battery life. It’s a bona fide die shrink over the original generation. My best guess (pure speculation, no firmware indication this is the case) is that if they need extra performance, they’ll push it to higher clock rates across the board, but yeah, I speculate games will be like “DSi enhanced” games were, or like how some games benefited from PlayStation 4 Pro despite working on PlayStation 4,” he wrote.
Nothing is official yet, but we’re curious to see if Nintendo will be capable of putting more power into the current form of the Nintendo Switch… if it does come to fruition.