Here is one that would actually help make old content alive. Daily random dungeons can be up to 10 dungeons a day and it's different for everyone and they can't be done unsynced. When you finish all your daily dungeons you get a token and you need 99 to finish the step. The tokens have a low drop rate in 2.x dungeons. People would actually do 2.x dungeons through DF and help people that need said dungeons to progress the story or clear.