1. Are you planning to promote your game somehow? Population is shrinking every day we need new players. p2p system made sure that old f2p players from previous wolrds won't play.
2. What are you going to do with game itself? Are you going to just add the content or develop more complex mechanics?
3. Only way to battle bots is to embed bot-like capabilities into the game, like previously mentioned "study table" and sorts. Something to make chores easier and raize quality of life.
4. World cycles aka rounds. This will make more people who think that they late for the party, people who lost their chars and everyone else who quit the game to return to the leveled playing field thus stabilise server population.
5. "Legacy" haven. Open sources ffs.