I recently found this post: https://3dscapture.com/forum/viewtopic.php?f=3&t=5400
Is it possible to buy New Nintendo 3DS XL capture cards?
I would also be okay with just buying the capture card and installing it myself.
I hope this is not a super stupid question.
I would suggest that if you're in a hurry to get a console with a capture board it's better to go for a regular 3DS. I have done that while I wait for New 3DS boards to get produced