Rorate has an excerpt directly from the source which I need not reproduce here. The gist is that PCED will be placed under the Congregation for Divine Worship and the Sacraments with Monsignor Perl, the commission's secretary, moved up to lead it as a bishop. The responses are catalogued below.
What Does The Prayer Really Say - Father Z finds it interesting with some conditions. I put him in 'positive' due to his approval of Monsignor Perl's possible elevation to the episcopacy.
The New Liturgical Movement - The rumor, if true, is referred to as being an 'excellent' development.
Wait and see:
Rorate Caeli - The post gives no official position, though the comments cover the spectrum, though most are skeptical that this will be a positive development for the EF community. New Catholic describes his position in the comments as 'realist.'
None outright so far that I've read.
I don't have an opinion as of yet.