Since we are all entertaining a far-fetched hypothetical here, why not complete the thought?
It would probably depend on the local Bishop. There would need to be HUGE changes in the formation process for priests in order for this to happen. One possibility would be a “gap” period between the completion of the initial seminary stage and ordination to the transitional diaconate. Where would they put the pre-cana process? Then they would have to figure out how to house the familes for the remainder of the seminary time, what formation the wives would undergo and the “biggie” – how to pay for it all.
There’s a Catch-22 to married priests at the parish level. Because of the additional responsibilities to family, a married priest would probably be most suited to a parish with multiple priests. But parishes with multiple priests usually have a rectory for their priests to live in and that would be very inappropriate for a wife and kids. This is one of the reasons why the original pastoral provision for married Anglican priests who converted specified that they be assigned to positions other than parishes.
In my personal opinion, any change involving young men would need a
very long implementation plan. The most likely expansion, in my personal opinon, would be for the Church to entertain, on a case-by-case basis, allowing married deacons to apply for ordination to the priesthood.