Predicted effects of invading Iran

Predicted effects of invading Iran asserted by advocates of such invasion:

End to Iranian nuclear weapon research
"Regime change" in two of three "Axis of Evil" rogue nations[?] (the others being Iraq (already invaded) and North Korea (more general conflict)[?].
Stability in Iraq due to inability of Southern Shi'ite population to unite politically with co-religionists in Iran.
Modern Islamic philosophy begins to tend to more peaceful traditions than the militant Islamist schools presently dominant.
etc.

By detractors:

Perception of "USA vs. Islam[?]" as real agenda of G. W. Bush
Breakdown of United Nations Security Council and NATO unity
Perception by North Korea that talking to, or cooperating with, other nations is simply part of a strategy designed to get it to disarm itself or stand by as troops are marshalled nearby, and then invade it after abrupt cut off of negotiations.
etc.