GT was fine, it was just poorly executed. Most fans like the concept of SS4 but not the way everything was handled around it.
I think if they are going to incorporate similar stories or just the SS4 transformation, they need to approach it differently. For one, get rid of calling it SS4 and opt for something like "Saiyan Primal" or something to that effect. If they are going to do something with the dragon balls "going evil" then that should be the front runner for the story. Like they did with Dragon Ball Super for the super dragon balls, call it Dragon Ball Darkstar or something, as an example.
I would be fine with it, just so long as they do a better job with it but I still think they have more left to explore before jumping ahead of time. I know the new movie takes place slightly in the future from where the anime and manga are set so maybe they are prepping for a time jump. Not sure.