Pope Francis did not agree to look into it again, he said emphatically in answer to a question, "the door is closed."
St John Paul II's Ordinatio Sacerdotalis is the last word upon the issue from now to kingdom come, even Pope Francis realises this.
You may be confused due to his opening of a discussion relating to deaconesses but as regards the priesthood the 'door is firmly closed'.
Even if the Catholic Church revived the order of deaconesses, no deaconesses would ever be allowed to serve as a liturgical 'deacon' in a celebration of the Mass or in any of the ceremonies of the 1962 Missal.