Slytherin specimen is not one of the parents of Millicent, YET, Milly's parents might not need to be slytherin, do they?
otherwise i wouldn't be surprised to see the Tonks family, Hestia, even Naricassa to some extent. How about madam bones and the patels... also other possibilities, where harry could make strong loyal and 'true' friends...
the stuff with dumbles, does make u wonder about the weasleys, and even, what kind of 'influence' he (dumbles) has over the DE. i mean, he could at various times pressure (politically, magically, etc), which may force the DEs to act in certain ways...
also, i like the fact, that voldy, just doesn't want to kill harry, but also understand why he was defeat those many yrs ago...
i look forward to see how you explain that... something which JK and other Fanfic authors have not been able to do...
i have mentioned a lot of things, but truely, at the moment, i am excited to see where u take this.. especially with ALL the major actors actually doign things...
congrats