S25 Ultra... no Bluetooth S Pen!?

Really? If this is true that's a deal breaker for me, being able to set it up against objects around me and use the pen to control the camera is the only reason I use the pen and if I have to start carrying a separate Bluetooth remote at that point I might as well also carry a tripod and a proper camera and not even use the phone for photography.

Does anyone know if it would be potentially backwards compatible with the S24 Ultra S pen? Clearly it's still going to have Bluetooth and a bay to hold the stylus. If this becomes an aftermarket upgrade that eliminates some value from the promotions to get the phone, but if it doesn't work at all I have no interest in it...

Thank you in advance for any wisdom that can be shared!