It would have to be a vision. Not just a "sighting" or some other fleeting impression...it would have to have some two-way conversation and a helluvalotta explanations and answers.
There are far too many reasons for not being a mormon, one hit doesn't undo thousands of misses. And even if for example the "plan of salvation" was true it would still be utter lunacy.
1) I would have to receive some kind of undeniable witness from God that the LDS church really is true. However, I obviously do not see this happening as I see the LDS as so blatantly UNTRUE. The witness would have to be more than just "feelings" or "promptings." More like receiving my own First Vision.
2) The LDS church changed its ways. If you could go to church when and how you pleased and you had the freedom to believe what you wanted. In other words, you didn't have to accept the notion that Joseph Smith was a prophet or the Book of Mormon inspired. However, this choice just means that I would only attend for social reasons and could care less about religious aspect of it. I tried hard to stay active when I was a non-believer because I didn't want to lose my social group, however it was just too hard being an in the closet unbeliever. And Mormonism is not tolerant of them.
If Irina Shyak or someone of that sort turned out after finishng her PhD in BioChemistry decided she was mormon and wouldn't marry me unless I did the same, I'd seriously consider it.
Honestly, if the first presidency came forward and said, "We have lied about this and this and this. We need to admit that we are not perfect and this church is not perfect, but we believe in the gospel and would like to live our lives accordingly," then I'd consider it. For me, I can't gest past the lies and the hiding and pretending. If they would present themselves and the church as it is, I would have an immense amount of respect and would consider it.
The last prayer I offered up, I told the "Lord" that the ONLY way I would believe in him or any religion, a visitation from him accompanied by a select few of my deceased loved ones would be required. They all could then tell me face-to-face which direction to go...and I would follow that direction for the rest of my days. If I had the option to die and join them at that point, all the better. If "God" loved me as much as I had been told growing up, I wouldn't think this request would be too much of a problem. Oh...and I also wanted a 6-DVD Box Set of the REAL history of the world. You know, scenes from the creation, the Titanic sinking, who shot Kennedy, etc.
That prayer was 14 years ago. Still waiting, but not holding my breath.
Only if I would immediately be made the senior apostle. Then when Tommy passes, I would be sustained as the new prophet. I would stand at my first conference and tell the world it is all a crock of s..t, and as the sole CEO of the Corporation of the President, I was immediately giving all the church assets to the poor, the hungry, the sick... as Christ would have us do.
PS: I would then run like hell, for the Conference Center doors...
I am so grateful to have broken the hypnotic hold the church had on me, I will NEVER let them get a hold of me again! "Milk before meat" means lure them in and then gradually let them find out the truth. Like a mosquito anesthetizing its victim before it bites him.
I would become a Mormon again if the LDS church were to pay tithing TO me for ten per cent of their incrase annuallly, plus sat offering (I'll just take 10% of what the brass pay in their FO's) and budget/maintenance.
Return to the church and we will give you back all your tithing and pay you 10% of your present income to stay.
Done.
See I now know that they don't give a sh*t if you believe or not--it's a financial arrangement. So if we flip it my direction, I'm in. It's not like it's a religion or anything.
That means I would have to testify that Joey was a profit back in the day--the one who married a 14 year old teen, the one who married women who were already married to other men, the one who is responsible for the work of fiction known as the book of MORmON, the one who couldn't get the book of Abraham right, the one who committed crimes in the name of his self-made religion, and on and on.
That means I would have to support, again, the American whites only doctrine, the inferiority of the non-white and non-American cultures and ethnicity, and on and on.
That means I would have to pay the cult's bastard definition of tithe again, and on and on.
That means I would, again, have to support a fraudulent belief system. I made that mistake once, and that is enough for an entire eternity; no way they are going to get their claws into my soul and psyche again.
To top it all off, any organization that has the likes of Mike Ash speaking for it is not going to ever have my support again.