I guess no more than 5 parts. I don't think people are going to be going through the 5 stages of grief though. It might be stages relating to tech, like: obsolescence, ubiquitousness of something along those lines.

but I'm not sure it would work for Tony's death so much since he is nowhere near as well-liked or loved as Steve was..

Agreed. I guess they'll close down Stark Tower, move some stuff. Steve, Pepper, Rhodey and a select few will have a ceremony of rememberance.

Oy, I cannot wait for the trades, so I'll be collecting this series. Damn it.