actually it will be all the above. I know allot of people say people will come back, but for every person that comes back some will not come back. Each of those games will take a portion of the destiny play base, now some will play both, but after awhile even those will stop playing over time as newer games comes out. The thing about MMO(not saying destiny is one) is they get boring after awhile and people get to the point that it's a habit to log in each day. The same thing will happen with destiny. I have said it before and I will keep saying it,. It's not just one game that will kill destiny it several. Also bungie is constantly shooting themselves in the foot with some of their decisions and rather questionable comments from their staff.