Sorry I don't have time to respond to every post as this is from a phone in a hotel, but all I can say is that the nets keeping the butterflies where they are have been fairly rigid up until now, and from now on they'll be free to roam around every corner of the world. Yes, the Nazis appear to be winning now, but there wouldn't be much of a story if the Soviets had simply said "No" and the Great Patriotic War had ended similar to OTL (admittedly, an Eastern Front without an Overlord would actually be pretty interesting, but that's not the purpose of this particular narrative.)
All I can say is that the Nazis are going to have a
little bit more luck here and there, but not necessarily the Axis as a whole, and when it does eventually run out, the Greater German Reich is going down
hard.
I resent that comparision to "Zweites Buch"; at least Weber dropped Schacht for Goering ages ago! (Ignore that organisation chart I put up some time ago; I do need to revise it.)

But in all seriousness, any timeline should be judged on its own merits; if future developments strain suspension of disbelief to its breaking point, feel free to let me know.