I’d definitely like to see the deluxes rotate. The power levels are just all over the place; C5C is full of problem cards, most of the other boxes carry a huge amount of deadweight which is inexcusable in cards that are eternal, as they end up being nothing more than a burden (money and familiarity) on new players.
The biggest difficulty is the mini factions, but that’s a little way down the line and they could be brought in through another reign and revere type box, (either adding one more or with a minifaction corp - probably the government?).