The Board of Control for Cricket in India (BCCI) has called for a Special General Meeting (SGM) in Ahmedabad on May 27 and there is likelihood that there could be a special announcement, post the meeting.
WORLD CUP 2023
BCCI may make major World Cup announcement after SGM on May 27

One of the five points of the SGM agenda is the "Formation of Working Group for the ICC World Cup 2023" © Getty
One of the five points of the SGM agenda is the "Formation of Working Group for the ICC World Cup 2023" and it is discussed that the venues for the October-November championship may be made public that day. The members of the organising committee may also be announced.
For the record, the dates and venues of the World Cup have not yet been announced but there is speculation that the quadrennial championship will start on October 5 and end on November 19 with