I want it to be successful but not so successful that they make sequels. Open world zombie games like this have never interested me, I'd like to see them making something else.Of course they'll make sequels to this.
In any case, I expect about inFamous SS levels of success for this; low 80s meta and a few million sold.
You don't spend this amount of time and resources on an IP to just leave it behind after one iteration, unless it completely fails.
Also I expect it to sell notably better than Infamous SS