Why not make new RTS games on AoE2 engine and give people access to AoE2 ?
Let’s talk about those 3 obvious problems,
new game or DLC does drain population from AoE2, or does mess up the gameplay like chronicles.
And let’s be honest, new games don’t have much of online population. Even if they are good.
AoE2 has a very large community , with very neat engine and both is kind of wasted.
So hear me out, what is we make on that engine for example em Rise of Nations 2, Cossack’s 4, Warcraft 4, Warlords Battle-cry 4, C&C Red Alert 4, and give people who buy it full access to AoE2.
So for example you get your Tzar: The Burden of the Crown 2 , Jurassic wars 3 or Aztec Wars 2, and after have fun with story mode and even if the game sold badly, you still can have a lot of fun with it in AoE2 PvP.
If you wanted AoE2, you probably have it by now, so I dont see how this idea could harm it.
So people play thier single player game with Robots and Dinosaurs, to come later into historical PvP.