The data rate may be different, but for continuous video, I'm not aware of any limitations, other than no All-I , as the video recording itself should be unaffected, as long as you use a supported micro SD card that can keep up. Any overflow is...
Yes but is that just a card format restriction or have DJI also set a "speed restriction" to the card? I'd like to think not, which would mean as the microSD technology improves we'll be able to get bit rates similar to the internal SSD.