I hope there is more civilization in this game like Malacca Sultanate empire and Ottoman empire with their famous commander.
In the future the RoC team of Lilith might plan new civilization but that takes time and hard work. CGI peeps have to draw, programmers have to code etc.
RoC has a discord server: https://discord.gg/7zzkvJY
Feel free to join to get in touch with the Devs and participate in various Q and As and even suggest stuff to the devs