Yep. But we can codify Roe by legislation. Then someone will file a suit. The SCOTUS will take a year to take the case. In the meantime, abortion will be legal in all 50 states.
Correct, they want to use the legislative process and then, if necessary, the numerous delays provided by the legal system and the courts to muddy the waters and temporarily "get Roe v. Wade back" - all while planning to replace a Supreme Court Justice or two.