Hopefully the new movies won't have any prequelisms, its a possibility considering them being in rebels and the comics.

Vader just being a henchman and not the whole Saga's focus is a bit more in tune with the original film. Unfortunately it also pretends those other movies all five of them never happened.

Vader becoming popular and turning out to be Luke father in Empire strikes back shifted the whole orbit of the original series.

The whole wouldn't it be interesting if Luke was not the central character what if it was Vader's story. I used to think it was a prequel conception now i am not so sure it did not begin with Empire.