The Holy Father is aware of the noble ideals that inspire you and the fortitude and prayerful spirit with which you are facing the current vicissitudes, and he encourages you to continue seeking the good of the Church and society by means of your own distinctive initiatives and institutions. In this regard, you can always count on the help of the Holy See, so that with truth and transparency, in a climate of fraternal and constructive dialogue, you will overcome the present difficulties. In this respect, the Holy Father has decided to carry out an Apostolic Visitation to the institutions of the Legionaries of Christ through a team of Prelates.
The Legion webpage shows that the letter was sent on the 10th of March. The General Director of the Legionaries has written a letter - available at the same webpage - and there's a rather coy FAQ:
Why is this Apostolic Visitation taking place?
The Holy Father has decided to help us to overcome our difficulties through an Apostolic Visitation.
Father Álvaro Corcuera has been in constant dialogue with the Holy See, asking for help and guidance.
Coyness aside, at least the rhetoric of the Legion is more palatable than the ranting of Sr Sandra Schneiders who is less than pleased at the fact that American female religious are also receiving a visitation.