[AdmSmith]

What will happen if the Ministry of Interior (if they are reesponsible for the election) publish lists of all candidates and say that the voters can vote for any candidate on this list?

They will then count all votes and publish the result.

If the mullahs do not accept the outcome and try to exclude any elected MP the theocracy will self-destruct and you will get rid of them, if they accept the election you will have a velvet revolution like the one in Georgia.

[Khashayar]

Good Question but it's a little complicated here:
Remember that Interior Ministry which is responsible to hold the election is a part of this regime. Our problem is the entire regime itself not parts of it, I have said this before.
Well, In fact Ministry of Interior can't publish a list of the candidates. They have no power to do so and they have to work and coordinate with Guardian Council of the Islamic republic.