Xiaomi may have just released the Xiaomi 12, Xiaomi 12X and Xiaomi 12 Pro, but there is already evidence suggesting it has another Xiaomi 12 series handset on the way. Reportedly, Xiaomi is preparing to launch a cheaper alternative to its existing Xiaomi 12 series trio.
https://www.notebookcheck.net/Xiaomi-12-Lite-More-indications-emerge-about-the-approaching-release-of-a-cheaper-alternative-to-the-Xiaomi-12-and-Xiaomi-12X.608998.0.html
Xiaomi has this same phone type audio marketed under the two other brands, Redmi and Poco. Hopefully both of over of these brands will have the 3.5 mm audio socket and the extra micro SD card option.