It has become clear that the GV60 has broad OTA capabilities. Presumably, it implements the Nvidia system.
news.hyundaimotorgroup.com
Although I've seen nothing from KIa about this, given the shared platform and major components it seems reasonable the same OTA capacity will be available in the EV6.

Always Up-To-Date: GV60’s Over-The-Air Software Update Technology
The Genesis GV60 houses over-the-air software update (OTA Software Update) technology to keep the system up to date. Here, the system softwar... | GENESIS story
Although I've seen nothing from KIa about this, given the shared platform and major components it seems reasonable the same OTA capacity will be available in the EV6.