A Realme smartphone with the internal model designation RMX3300 was allegedly spotted on China's 3C certification site. It is being speculated that the listing is for the Realme GT 2 Pro and it suggests that the smartphone may get 65W fast charging support and 5G connectivity.

source https://gadgets.ndtv.com/mobiles/news/realme-gt-2-pro-specifications-5g-65w-fast-charging-rmx3300-3c-listing-launch-date-december-20-2649943#rss-gadgets-all