I've had some ideas in mind for...probably over a year now, but I haven't really expressed them on the forum before. I figured now would be as good a time as any, since they might get new players involved or bring back older players.
Looking back at the National RP Archive, it's interesting to see the past subforums that were created with the hope of resolving specific issues the roleplay faced at the time. In-Depth Roleplay was the first one. It was created due to the growing number of shorter posts being made, with the goal of encouraging lengthier posts with more detail. Although it accomplished its goal, it was eventually retired for a couple reasons. Lengthier posts began appearing in the main National Affairs subforum, and the In-Depth subforum started being treated as completely separate from the main subforum's roleplay.
Then along came Organic Roleplay. This was created for the purpose of establishing a more natural roleplay with less rules than the main subforum. It was eventually retired after community interest and activity died out. Lifetime of War was next. I'm not sure what that was, but it was the least active of the subforums to be created. The last subforum to be created was Map-Based Roleplay. It was created for the purpose of reviving the style of roleplay that used to take place in the main subforum, as well as creating a distinct environment for map-based RP not based on your in-game nation. This left the main subforum free for roleplaying the actions of your in-game nation. It also eventually died out due to the lack of community interest and activity. It should be noted that the rules attached to some of these subforums as well as involvement from moderators also turned off people from participating.
Perhaps the reason I held off on sharing my idea was because I felt that it would only attract previous players instead of new ones, which wouldn't exactly resolve the activity issue. However, who will ever really know unless the idea is presented in the first place? The idea I had was to retire the Map-Based Roleplay subforum to the Archive (which doesn't prevent the two people still using it once or twice a month from continuing to use it), and creating two new subforums in its place. (You might be able to see why I held off on sharing this, since what's the point of creating more subforums when activity is non-existent?)
Anyway, the first subforum would be for more realistic roleplay, similar to real life. The second subforum would be for fantasy roleplay. (Both of these wouldn't have to be associated with your in-game nation, of course.) The realistic RP would be map-based, just as the Map-Based Roleplay is now, and the fantasy RP would be based on a fantasy/fictional world. For example, it could be based on, say, the world of Remnant from the RWBY series. Basically, it would be something entirely different from just plain Earth. There are a few issues I can think of with fantasy RP, however. If a map was used from a preexisting story, it may just be easiest to do a roleplay based off the entire series at that point. Obviously not everyone will be familiar with the world that's chosen. Another issue is creating reasonably-sized provinces for whatever map is chosen if it doesn't already have them. The only solution I can really think of would be to find an original world with provinces already drawn, and letting the players shape the world as they go.
My last idea, that I just remembered while writing this, is to have a roleplay that takes place on Earth, but during a specific time in history. One could take place during World War II. One could take place even further back in time, or in the near or distant future.
For any of these, I'd suggest keeping rules and moderator involvement to a minimum so the roleplay can flow naturally. However, I recognize that these ideas are best-suited for larger and more active communities. I still wanted to share them and see what others think, though.