On the site of Archivum Liturgicum we read:
12 Aprile 2006
La Liturgia romana non e’ mai stata abolita
Diverse fonti confermano che domani, Giovedi’ Santo, dovrebbe uscire un importante documento del Papa avente come argomento la validita’ attuale della Liturgia tridentina. Questo documento – si dice in forma di Motu proprio – e’ gia’ stato firmato e dev’essere solo promulgato ufficialmente. Recentissime udienze del Papa concesse al card. Arinze lasciano supporre ragionevolmente che la data di pubblicazione sia appunto domani.
My translation and emphasis:
12 Aprile 2006
The Roman Liturgy was never abolished
Different sources confirm that tomorrow, Holy Thursday, there ought to come forth an important document of the Pope having as its theme the present validity (probably read: juridical force) of the Tridentine liturgy. This document, it is said in the form of a Motu proprio – has already been signed and it needs only to be officially promulgated. Very recent audiences granted to Cardinal Arinze leave us reasonably to suppose that the date of publication will indeed be tomorrow.
