It seems somewhat logical that when Avengers starts, Stark could still be in his role as "consultant" and producing tech for the Avengers to use. I think any number of scenarios could come up that would cause him to not listen to Fury, suit up in the armor and come out to assist as Iron Man.
That's exactly what I am thinking is going to happen. Tony will stay as a consultant, maybe they'll even make Rhodey a part of the Avengers at first, since Natasha's report says Iron Man, Yes. Tony, No. So we'll probably have Rhodey be part of the team as War Machine, maybe he'll even don the Iron Man armor, and later, when **** hits the fan, Tony will join the battle as Iron Man.
I'd like Captain America to play a role in getting Tony on the team. They're really good friends and allies in the comics, and I'd like to see that show in the Avengers movie.
Maybe Cap could convince Fury that Tony should be on the team?
The only Avengers stuff was the Cap shield and the final scene, which was basically a TIH scene. Why were people not complaining about Stark showing up in a Hulk movie?
This is what I'm trying to figure out, when it happened then it was the coolest thing ever, now it's not, a little under two years later?
It's typical for these boards...all you heard for years was how all the Marvel movies need to be in the same universe....now we get it....and lo and behold it's a problem.
I'm telling you, it's just because the Avengers movie has been announced. People expect to see Marvel promote the Avengers movie like crazy, so all they let themselves see is Marvel promoting the Avengers movie like crazy.
It kinda makes you wonder how the X-Men movies would have been perceived if X-Men Origins: Wolverine had been announced earlier? Could you imagine people complaining about there being too many mentions of Wolverine's past, etc. in those movies? X2 would have been written off as one big advertisement for the Wolverine movie faster than you could say "fickle fanboys."

What strikes me as a little odd about Marvel's obsession with Avengers is that it really won't make much more money than the single superhero films. The demographic watching these movies is exactly the same. It's not like Avengers will make 2 or 3 times as much.
Almost, but not entirely.
Think about it: there are fans of Marvel, and then there are fans of specific Marvel characters. A fan of Marvel would probably see any movie made by Marvel, but a fan of a specific character will, probably, only see movies with that specific character in it. For example, a fan of ONLY Thor might not pay to see the Captain America and Iron Man movies, but he would pay to see the Thor and Avengers movie.
So, the Avengers movie has a chance to attract more people (and in turn make more money) than the solo movies because it appeals to a wide range of Marvel fans, not just one or two select groups (not just Cap fans, or Thor fans, or Iron Man fans). Plus, it's the novelty of it. It'll be the first movie of it's kind, and I think movies like Avatar and TDK prove that "firsts" can get a lot of extra attention from the general public.