I hear rumours also that there are different versions of the final text circulating: this might suggest that there will be regional variations (such as we have in the current version of the Credo, where our version differs slightly from the American).
Looking at those collects in posts below, in each case I think that the revisions have made better collects than 2008 did, and if this also be the case with the ordinary, then perhaps I am worrying needlessly, and will actually think that they have improved things.
But nonetheless, something that is certainly taking place is that musicians have laid down their pens, because we simply don't know what will emerge as the final version. Perhaps in some cases this is a good thing, but not in others. It certainly means that if the texts of, say the Gloria and Sanctus are considerably altered, the music we will be singing in a few months' time will have been hurriedly produced, and that is rarely a good thing (for not all musicians are Rossinis).