Credits (incitative) : Think of a way to incitate those who never bought credits to earn credits from ingame involvement, mentorship for exemple. This could also be the equivalent of 2 credit per prov a week instead of a free invite. 25 provs KDs could benefits the wasted invites and smaller KDs could choose to gather them to invite or explore the shop.

Shop : Think of 25 bundle packs price for renames, race/pers setup and maybe some others possibilities.

Provinces Logs : debating if yes or not monarch should witness kingdom mates's provinces logs.

how about, <url> Welcome to Age 76: Age of the Empyrean Advent!! </url> to age's changes in forums and leaving a quick access all age long.