You know about FSSP, I'm sure. Then there are a large number of people, amongst whom I include myself, who attend the Novus Ordo every week, but who still have a deep love for the old rite and would attend it ,if made available. Circumstances (i.e. a non-cooperative bishop) often do not allow this.
The Pope recognizes this too. Read Ecclesia Dei. The Holy Father,asked for a "wide and generous" interpretation of its provisions. He knows we're not asking for the suppression of the Novus Ordo.