Suppose you ran the Third Reich in 1941 with 20-20 foresight? You wanted to rule Germany and have Germany rule the world but you had infinitely better judgement than OTL origionals. With a POD of Jan 1. 1941 what would you do?
What about this? I would put war with USSR on back burner, hopefully until after all current enemies have surrendered, at least.
I would watch USSR closely for signs they were about to attack us.
If Pearl Harbor went off on schedule I would not declare war on USA.
I know there's sort of an unofficial war going on but that's different.
In the world press I would wonder what this aid to the UK is all about? After all, the USA is in a declared war with somebody else.
If you study you will find out Germany was not obligated to go to war with USA. Don't believe me? Find it on your own.