Currently this is low-priority for Zope Corporation while we dig out of customer work, but will likely become higher priority very soon a we have at least one customer moving towards 2.7. In the meantime, it's a "volunteer effort".
Okey doke, that tells me Plone 1.1 will probably get there first then :)
If you're willing and able to collaborate on installer stuff, please let me know, as I have already automated a buildout and packaging process for Zope 2.7+ both for RPM-based systems and for Windows via Innosetup. I can check the Windows stuff into a public repository if you're interested.
I've already got an automated setup for Plone and I had one for Zope 3 (im sure its somewhere), I was doing one for Zope 2.7. Partly to take the pressure of Zope Corp., I know the 2.6.x windows installer and releases is a pain - partly to do a rather fatter bigger value added installer :) -- Andy McKay http://www.agmweb.ca