According to twitter leaker How2fly, Panasonic will soon announce a new All-in-one zoom lens for L-mount mirrorless cameras. Currently, no specs about this lens. The official announcement should happen in next few days for the upcoming CP+ Show in Japan.
From how2fly:
Not only FUJIFILM, Sigma, Sony, but also Panasonic LUMIX(keywords:all-in-one zoom).
— how2fly (@camerainsider) February 18, 2024