Welcome @Leroy ,
As far as information goes from DJI, here is the info they released.
The MSDK is gradually prioritising to the enterprise level aircraft, the priority level of product from high to low is enterprise level aircraft > consumer level aircraft > hanheld product.
There is no plan to support Mavic 3, Mavic 3 Cine and Mavic 3 Classic currently.
There is no plan to support Mini 2 SE currently.
There is no plan to support DJI Avata currently.
Its a shame too, that DJI wont allow 3rd party developers to expand the capability of DJI products. They are shooting themselves in the foot, if you ask me.
If you chose to do so, you can contact litchi and ask for a refund (email@example.com)