Today I talked to Evan at Anobium and he said that next week he will have news about Pickit4 after his meeting with Microchip.

The (low-cost) Standalone Pickit Plus currently supports 2 and 3. Also there is a feature to check if there is new hex file and auto program the PIC with no intervention by the user.

I use this tool a long time and am very happy with it. I had it with the MPLAB IDE/IPE and got rid off it.

If interested I'll let you know what happens.

Ioannis