[jacknhoo]

I would estimate 35 to start and eventually all would make abortion legal if Roe v Wade were reversed - we’ve learned so much since that error in judgment.

Abortion Ban Considered in Growing Number of States: South Dakota, Indiana, Ohio
http://www.lifesite.net/ldn/2006/jan/06012303.html

Many states would ban abortion, report finds
Roe v. Wade ruling prevents it, but that could change
http://www.msnbc.msn.com/id/6184949/

It is kind of clear, to me, which states would outlaw this child murder - this is a good indicator of the ones that would not outlaw abortion:
States that provide Constitutional Protection for it:

http://www.prochoiceamerica.org/choice-action-center/in_your_state/who-decides/maps-and-charts/map.jsp?mapID=24

[Vision]

That article says only about 20 would be “safe” from outlawing abortion. IMO, no way. I’d be surprised is 20 outlawed it entirely.