I think the Revised NA would be a better idea. Yes, a lot of tweaking would have to be done, but it’s doable.
I think a lot of the old NAs blend perfectly with the new game. Here are some examples:
1. Lend Lease lets USSR convert US and UK pieces to USSR pieces. This means you won’t loose IPCs when your allies try to help you.
2. Japan is now an “island” on the new board, which means Dug-In Defenders now apply. Didn’t it seem dumb in AAR that Japanese infantry would put up a better fight on Iceland or Greenland than Japan?
Examples of needed tweaks:
1. Siberian Railway would obviously be extended to include the two new territories.
2. The Atlantic Wall and Fortress Europe NA would be weakened if the wording “all gray territories” were kept as is. At least it should be extended to “all gray and brown territories”. Basically, German Infantry and Artillery get a bonus fighting in Italy, but Italian Infantry and Artillery don’t. It seems paradoxical, but that’s the way it happened. Germany fought to the teeth while Italy surrendered.
I don’t think Italy should get a national “advantage.” Really, was their anything special or unique about Italy in WWII to warrant a NA? Personally, I think no NAs add to Italy’s character. It’s small, poor, and has only 2 NOs. Yet, it’s probably my favorite. As the old saying goes, “Small is beautiful.”