for all the good that halo is (hey I just bought odst and will get reach), i'm not sure bungie will ever be able to replicate the franchise...
Having a franchise that has a ton of rabbid fans is more due to luck than an actual good game. Halo was afterall the first big online console FPS.... and the first always has a prefered spot in the hearts of people.
Now if you look at the next franchise you'll have disgruntled people saying "meh, it's not halo" and others saying "ok, but I seen that before".... it's just going to be hard for them to get similar success.
look at BFBC2 vs MW2 sales and you'll see the difference between a franchise with a fanbase and a wanabe competitor... both games are great, but one has the fanbase.
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