Josephine Lyon, daughter of Sylvia Sessions Lyon, is reported to have told her daughter that she “was the daughter of the Prophet Joseph Smith” shortly before she died. It is not known whether Sessions was referring to her daughter as being a literal descendant of Joseph Smith, or if she was referring to that fact that she had been sealed to the prophet. DNA testing is ongoing in order to make this determination, but it is rendered more difficult since the Y chromosome evidence of paternal lineage is not present in females.
http://en.fairmormon.org/Joseph_Smith_a ... _marriages
It seems that she was referring to be a spiritual daughter of Joseph Smith.
This is proof that no matter how lame an apologetic argument is, once it has been suggested, it will never die.
If Sylvia was only referring to being a "spiritual daughter of Joseph Smith", then she would not have singled out ONE offspring.
Nor would she have kept something so innocuous a secret until her deathbed.
by the way, it's interesting that the DNA research was suspended just as the evidence was seeming to point to Josephine being Joseph Smith' biological daughter.
In regards to the OP, I do not believe the LDS church will EVER reinstate polygamy. Unlike the early LDS church, today's LDS church, more than anything else, wants to be seen as part of the mainstream religious community. Reinstating polygamy would ensure that LDS would be viewed forever as the whacky fringe, which today's leaders do not want.
Personally, I would enjoy the spectacle if it were reinstated. I'd enjoy watching all these big mouths who defend polygamy trying to deal with it in real life.