I don't mean to be rude, but what are you talking about? Simple fact is: the court can take about any case it wants on abortion and overturn Roe v. Wade. Republicans can make all the excuses it wants about how poorly its written, etc, etc. but its only an excuse. Legally, the other issues like cloning and stem cell are completely different and have nothing to do with Roe v. Wade.
Likewise, "late term abortions" (however that's defined) skirt around R v W but do not take it head on.
On the other hand, about any abortion issue can trigger the court to reverse R v W.