Civ 6 seems to no longer be developed by Firaxis, and they dont seem to read these forums even if they did, so it's not likely going to ever happen.
Also an extra wildcard policy slot that early is too strong, and any strong player would hardly ever use it for great person generation as that is in nearly all cases a complete waste of a card slot that early.
What you would want to run in that case is double economic cards, especially god king and urban planning, later swapping out for urban planning and colonization.
Greece already gets this extra wild card slot, and it's a mistake to run great person cards when you play them when you can run the double yellow card combinations above.