Re: Downey's last?
This thread makes me one, sad panda.
Anyway, I say make Iron Man 4, Avengers 2 and Avengers 3 then RDJ can retire from the character.
After that do a complete reboot in 8 years. Marvel Studios can focus on other, non-Avenger projects within that 8 years.
"Don't listen to scientists, academics, fact checkers, journalists, constitutional scholars or intelligence agencies. The truth doesn't matter, only blind obedience" - any authoritarian regime