Maybe that's because they can't show anything without spoiling anything?
But how so?
How does revealing story points about Trevor and Simon not "spoil" anything but revealing anything about Alucard does?
The only thing I can think of is that Trevor DOES in fact become Alucard and thus they just refuse to show story for him so its a secrete.
But at this point Cox and his team pretty much knows that the majority of the fanbase is expecting it.
Hell, one fan even asked him about Trevor being Alucard and he said no.
So I still don't get what the heck they are waiting for.