I would be very surprised if this were to occur. It’s an empty superficial gesture, and our Holy Father has expressed his disdain for superficiality multiple times.
Such an expression is contrary to the actual thought of Pope Francis and the mind of the last ecumenical council.
Our Holy Father spoke of this prospective change of date at a gathering of priests last Summer, committing us to the proposal made by Pope Tawadros II of the Coptic Orthodox Church. You may read the details in English here:
ncregister.com/daily-news/gift-of-unity-will-pope-francis-change-the-date-of-easter
Far from an empty and superficial gesture, the Holy Father sees this as an important initiative and a significant gesture as we move to overcome the scandal of disunity and move toward restoration of full communion. Other leaders have also accepted the proposal and dialogue continues. It is a matter now of seeing who else agrees to the proposal and then choosing to make the decision to implement.
The Council Fathers also did not see this as an empty and superficial gesture but rather as being significant and important…and they addressed this matter in an appendix they attached to
Sacrosanctum Concilium, specifically noting however that while they approved this initiative, they advised that Rome should not act unilaterally to establish a fixed date for Easter but should act in concert with the other Churches and ecclesial communities on this issue:
*APPENDIX
A DECLARATION OF THE SECOND ECUMENICAL COUNCIL OF THE VATICAN ON REVISION OF THE CALENDAR
The Second Ecumenical Sacred Council of the Vatican, recognizing the importance of the wishes expressed by many concerning the assignment of the feast of Easter to a fixed Sunday and concerning an unchanging calendar, having carefully considered the effects which could result from the introduction of a new calendar, declares as follows:
The Sacred Council would not object if the feast of Easter were assigned to a particular Sunday of the Gregorian Calendar, provided that those whom it may concern, especially the brethren who are not in communion with the Apostolic See, give their assent. *