I hope we get this info next month when the Concept M5 debuts. The transmission choice they make for the M5 could very well have implications for the rest of the M lineup going forward. Of course we won't really know to what extent for a while, but to me it would not bode well for the future of M-DCT in any M passenger car if they give the M5 the ZF8.
2008 Interlagos Blue E93 M3 - M-DCT
2011 Salsa Red Jetta TDI Sportwagen - DSG