The movies were delayed as well, Wanda and Pietro were called "miracles" the closest word the MCU could use instead of mutant at the moment without the rights to the X-men and WandaVision hinted at Wanda having powers since she was a child until the Mind Stone fully developed them, as well as Pietroīs, I believe thereīs reason to think thatīs were they are going but the MCU would still may make changes so itīs mutants will be different to Fox and most likely related to the Eternals like in the comics but we will not know for sure until Multiverse of Madness.
Thereīs also Namor already being on Wakanda movie so another mutant involved on the MCU before they make their official movie or series.