https://wccftech.com/ipad-mini-6-also-called-ipad-mini-pro-launch-h2-2021/

There is a possibility that the iPad mini 6 arrives in the second half of 2021, though previous information has pegged the small tablet to arrive in March. Apple may also decide on a new name, with a fresh rumor claiming that the ‘iPad mini Pro’ could have a bigger display than the current-generation iPad mini 5.

According to Korean website Naver, this iPad mini Pro, or iPad mini 6, whatever you want to call it, for now, has passed Apple’s initial R&D stage and is currently in a ‘P2’ state. Apple is rumored to commence DVT or Design Validation Tests soon. Assuming things go according to plan, the iPad mini 6 would then go through a Production Validation Test, or PVT, after which the tablet would undergo mass production.