Don't know if Hickman is the best choice for Spider-man. He is More high concept And i'd rather keep Spider-man on the low.
I think Hickman would do well with someone like Cap or Iron Man, something which can him say what he wants to say And do something special.
My guess is that after beyond, we'll get the road to 900, And That'll set up the story for #1000 (much like 600 to 700).
I'm guessing Cates Could get it. Someone mentioned that his Hulk will probably only last 12 issues, i think they gave him Hulk to not only pass the time for Spider-man, but also to progress either his Thanos or his Ultimate story that he has been teasing for years.
So the Cates verse will all be connected in some way (good job i'm an early adopter of his comics).
Al Ewing would be a choice i'd love to see as well just because I know we'll get something akin to the 70's.