I still want to play Destiny, but short of new content, BO3 is looking like a better time filler. Plus BO3 is shiney at the moment so therefore more people will be on for the honeymoon phase and it will settle down after that.However to get all the challenges in MP, Zombies, Campaign, Zombies campaign and Arena mode. That's a fair bit of content to get stuck into, so it's fair to say it should last a good while if you're looking to achieve some goals