Deaconesses?

Currently in Canon Law, Canon 1370 says this:

"3. Both a person who attempts to confer a sacred order on a woman, and the woman who attempts to receive the sacred order, incur a latae sententiae excommunication reserved to the Apostolic See"

What that means is that no priest can absolve any person who attempts to ordain a woman to the diaconate, nor can any priest absolve the woman who is "ordained".  Instead, the priest who hears this in the confessional has to write to Rome in order to get permission to absolve the "ordainer" and/or the woman "ordained".

There has been some talk over the last 50 years about ordaining women as deacons.  My question is this: 

Can something that is currently a crime in the Catholic Church that a priest cannot grant absolution for suddenly be reversed and become Catholic teaching?