Good news:
According to Amazon France, a new recording of Missa Votiva (ZWV 18) by Collegium Vocale 1704 (artistic director: Vaclav Luks; see http://www.collegium1704.com) will be released on the Harmonia Mundi label in August 2008. Thanks to Roger Peters (the first person ever to become a member of the forum) for bringing this to my attention.
The possibility that such a recording would be released has already been mentioned on this part of the forum (under the same thread as that discussing the possibility of a new Rademann recording of the same work), but at that time djdresden had heard that the label would be ZigZag Territoires. Now we know that it will be Harmonia Mundi.