Well, to me, the only interesting question right now is:
Can I use the new RC Remote of the Mini 3 Pro with my Mavic 3?
(I'm not talking about the default-remote without screen)

Interesting question, I cannot answer, but I have some thoughts on it:
RC Mini3 is a cost adder of approx 150,- to the standard Mini3 package, whereas the RC Pro is substantially more expensive, around 700,-
Functionality seems not to be in line with this price gap.
Therefore I assume DJI will not release the RC (non-pro) for other drones, at least not with the Mini3 price tag. From what it looks I cannot imagine it theoretically would not be compatible, but I guess DJI will either restrict the software (DJI is expert in restrictions)  or simply not put any efforts into it (also expert here)

I am not sure about that but It will be for the Air 2S and maybe in the future it will become the standard remote control.

CaptainSmack Posted at 5-10 07:12
Interesting question, I cannot answer, but I have some thoughts on it:
RC Mini3 is a cost adder of approx 150,- to the standard Mini3 package, whereas the RC Pro is substantially more expensive, around 700,-
Functionality seems not to be in line with this price gap.

I'm kinda afraid about this, as well.

However: They kinda still have to make up for the announced but then canceled Mavic 3 + RC Pro bundle.

"Stewart and Alina" on YouTube commented:
"DJI have told us that it should be compatible with the Mavic 3 by June or July. No information on any other drones at this stage."

This would be awesome and make me buy the Mini.
If not, I would leave it out.

I'd be interested to see if the DJI RC Pro controller that I already have will be updated via FW to be compatible with the Mini 3 Pro.  

Hi there. Thank you for reaching out. We will forward this concern of yours to our designated team for further clarification. We will keep you posted once we have an update. Thank you for your valued support.

I just tried, and the RC could not "see" the turned on Mavic 3, it just told me that it could not connect to the Mini Pro 3 (was turned off ofc). Im no tech jedi, but there was no obvious way to go around that. Looks like a no atm at least:-/

Cheers

MHOP Posted at 5-18 04:56
I just tried, and the RC could not "see" the turned on Mavic 3, it just told me that it could not connect to the Mini Pro 3 (was turned off ofc). Im no tech jedi, but there was no obvious way to go around that. Looks like a no atm at least:-/

Cheers

Thanks for the try!

Any chance the latest Firmware has changed anything?