That's a very nicely put post DMCGamer, even if I don't agree with everything about it. Good one.
The main problem with Classic DMC continuing are Capcom's claims that nobody originally involved in the series wants to continue it anymore (Mainly because they systematically drove away most of the series's creators), and Itsuno claims (publically at least) that he doesn't want to work on the Classic universe.
Unless a new team is constructed to continue the original series, it doesn't seem terribly likely. If Itsuno was made to help with that project then he'd have to pull double-duty on DmC as well, seeing as NT apparently can't be expected to make a combat system themselves.
I reckon if Itsuno pulled his thumb out and made DmC's gameplay more challenging with greater depth in future people wouldn't be quite as hostile to it, but it would still leave me to deal with Antonaides's writing, which I find intolerable.
TLDR; Classic DMC probably can't come back, DmC2 needs deeper gameplay and Neil Gaimen writing it.