my own prediction - absent Roe, 2 states would outlaw abortion for adult women in the first trimester - Utah and Mississippi. and be able to sustain it through their election and legislative process.
and when that became apparent, I guarantee you that social conservatives would be back asking for an activist SCOTUS on the flipside, finding some constitutional prohibition for first trimester abortions.
However, with Roe gone, states could make progress towards curbing abortion. Not all would eliminate first term abortion but we might finally rid ourselves of the barbaric infanticide of partial-birth abortion. That would itself be a triumph for civilization.
There is a whole mess of fruits which have grown from the poisonous tree that is Roe vs Wade.
If pro-abortionists are so certain the states would keep abortion-on-demand legal, why not just offer an abortion-amendment and be done with it.