Disclaimer: some would come up with the argument of “uh but that was not very well received”. But it does not make sense to drop it immediately. There is a critical mass point where the game would suddenly become rich and interesting.
Also, the playerbase mostly only plays skirmish (which is in turn the result of not offering anything else). No wonder if you just release 3 scenarios to those players, they won’t be interested. The goal is not to horde all skirmish players to sp, but to attract the sp players who did not try the game because it lacks sp contents. For that you need continued support and the critical mass.
For example, not all AOE2 campaigns are good or liked. Campaign achievement rate is always low. First few DLCs of AOE2 HD did not do miracle. They never dropped that immediately. Now you can recommend AOE2 to your friends using the campaigns as one of the major selling points. Not sure if I can say the same for AOE3.
Here are the things that could be great if continued, but dropped after one or two attempts.
1. Event scenario: We got only one.
2. Historical battle or any form of sp scenario: Each AOE2 DLC adds 3~4 full campaigns. Here we got no more than 3 scenarios each. And we haven’t received a single one in two years.
3. Co-op: Because no new sp scenarios, no new co-ops either.
4. Historical map: Added one batch, hidden behind a DLC and buried in the random map list. Nothing more.
BTW, scenario editor: it has been difficult to use since legacy. DE does not improve it at all. So the custom scenario community is inactive as well. Guess why?
It gives me the feeling that time after time the devs made one attempt on something, did not achieve an immense success, and quickly lost heart and switched to something else (or forced by the highe-ups). And now we are left with a few different modes, each only offers a very limited amount of contents, and neither is rich enough to attract or retain respective potential players.
I hope to see at least one of these things worked on before you pull the plug.