From Radio Vaticana:
The Pope has confirmed Monsignor Guido Marini as Master of Pontifical Liturgical Ceremonies. Born 49 years ago in Genoa, Monsignor Guido Marini had been called to this position by Benedict XVI in October 2007.
As all confirmations and nominations in the Curia or Papal Chapels, except when expressly mentioned otherwise for a different period or for life, the nomination is for a five-year term (cf. Pastor Bonus, art. 182 § 2).
Source (in Italian). Tip: @ASchwibach