It should work, but you might want to have a 128G card and use your current card as a backup. I have found that after 3 or 5 flights filming at 4K the 64G card is completely filled up since the files are huge. It also convinced me to buy a 5TB external hard drive to download all of these awesome flights and not fill up the desktop computer. I always wondered who in the world would need a 5TB drive.... Now I know....
Im pondering an external SSD, prob 500 will be enough for me though. I have 2x 64gb u3 v30 cards, but i am edging towards recording in 2.7k for a balance. I can only watch 4k on the TV for now or on the pro max(pointless as small screen and even 720 looks good!). Decisions decisions, but they are nice ones to have!.
I'm currently using a 128gb sandisk ultra U1 microsd and while I do get a "slow sd card speed" warning, it still manages to record in 4k 60fps or 4k 30fps HDR just fine.
Because the warning is annoying to me, I've ordered a 128gb samsung U3 microsd. I'll use the other as a backup.