Well, with OS being in the LH group, and MAN being very favourable with LH, maybe OS could run VIE.
After all, there is a press release buried somewhere stating MAN could still get new routes from Lufthansa. With the major German hubs covered from MAN (barring SXF), where else is left for Lufthansa?
They have Milan MXP, VIE with OS, or possibly use bmi/bmiR/bmiBaby to expand routes?
In terms of MAD, it was widely hoped that the JV or even a BA hub at MAD would bear fruit for a MAN-MAD route, but alas nothing has come of that, as of yet.
Lisbon wise, TAP dont seem to be interested in MAN, so I guess it will be left to the Locos to fill the gap, no matter how much MAN could use the connections there...