I am excited to see your continuation war post! I hope you include some Spanish volunteer content in that post if you are planning on featuring a leningrad map, they would be cool premium/event squads.
if you are looking for any ideas for future posts, some ideas I have would be:
Battle for Kvam
A campaign update centered on the German invasion of Norway, focusing on new low BR maps and content for Germany and the UK. There is also plenty of room for Norwegian and even Danish content offerings.
This is a Norway/Denmark tech tree I made, it could easily be broken into a Norway event/premium squads and captured equipment for Germany (they had just capitulated Denmark)
Germany could finally get the Panzerkampfwagen Neubaufahrzeug
Battle for Vevi
A campaign update centered on the German/Italian invasion of Greece, focusing on new low BR maps and content for Italy and the UK/Australia, with less attention given to Germany and Greece as events or premiums.
Battle of Voronezh
A campaign update centered on the German/Hungarian battle of Voronezh. I mainly suggest this as a way to include Hungary into the game in a major way.