Lobby-wide game chat will be very fun

Have options to declare war/locate people/invite to warpact in chat / give coordinates to a specific zone

Have basic chat functions like @mentions / reply to messages/ sharing battle reports to show who attacked first

When you click on player profiles it could show their level/number of games played/other cosmetic stuff to stroke people's ego

Other misc like notifications for war "xx DECLARES WAAAGH AGAINST xx" or emojis or future alliance system