Well-known industry insider and leaker billbil-kun has recently revealed that Nintendo intends to release a new Switch OLED model, which is going to be a Mario Red Edition in the classic Neon Red shade. The post says that this new edition will feature red Joy-Cons, a matching docking station, and other accessories. The console will have red accents on certain contents of the package.
Aside from the contents of the special edition of the Switch OLED model, it is planned for release just before October 2023. Since August 2023 is ending, this console will most likely launch next month, September 2023.
This new OLED Switch model might get revealed soon since there is a Nintendo Direct scheduled for tomorrow, August 31, 2023. Billbil-kun revealed that the pricing for this special console will be $349.99 in the US. Also note that there is already a Mario Red Edition in the past, but it is in the form of the standard Nintendo Switch console.