Yes, the
Phantom 4 Pro v2.0 is discontinued. Apparently DJI feel that anyone needing mapping or photogrammetry will be able to afford the M300 and P1 camera combination. The upcoming Inspire 3 rumoured for a September release will also be capable in those areas with the X9 camera but again that will be a 5 figure price tag.
Likewise the Phantom 4 RTK is also discontinued. I purchased one of the last in inventory here in Australia in February. Word is however that a Phantom 4 RTK S.E. or similar is being or has been released. Evidently it is actually some what less featured than the original but least it means battery supplies should continue for a while. I have no word about what the status of the P 4 Multispectral is.
Regards
Ari