Reuters says that Milingo/celibacy will be the issue:

Pope Benedict has called a meeting of Vatican advisers for a "reflection" on issues related to celibacy in the Church following a schism led by a renegade African archbishop who wants priests to be able to marry.

The meeting, to be held on Thursday, was announced by the Vatican’s press office on Monday in a short statement that a spokesman said did not imply a review of current rules that priests remain celibate.

The statement said the Pope and leaders of Vatican departments would hold a "reflection on requests for dispensation from the obligation of celibacy and on requests for readmission to the priestly ministry by priests who had married".

Asked for clarification, chief Vatican spokesman Father Federico Lombardi said the meeting was not being called to consider major changes in the celibacy rule but to discuss the issue generally and certain individual cases.

The main purpose of the meeting is to discuss the ramifications of the crisis sparked when Archbishop Emmanuel Milingo ordained four married men as priests at a ceremony in Washington D.C. in September.

From today’s Bulletin:

Il Santo Padre ha convocato per giovedì 16 novembre una riunione dei Capi Dicastero della Curia Romana per esaminare la situazione creatasi in seguito alla disobbedienza di Mons. Emmanuel Milingo e per compiere una riflessione sulle domande di dispensa dall’obbligo del celibato e sulle domande di riammissione al ministero sacerdotale presentate da parte di sacerdoti sposati nel corso degli anni più recenti. Non sono previsti altri argomenti all’ordine del giorno

Zadok translates:

The Holy Father has summoned a meeting of the heads of the dicasteries of the Roman Curia for Thursday the 16th of November to examine the situation arising following the disobedience of Mons. Emmanuel Milingo and to reflect on the requests for dispensation from the obligation of celibacy and on requests for readmission to the priestly ministry given by married priests over the past few years. No other topics are foreseen for the agenda.

Helpful background from John Allen – going back to the discussions at the 2005 Synod of bishops and some more current reflections.