Wouldn't think it would change next years movies before Infinity War. Easy explanation is Wanda somehow winds up with the gauntlet, or one of the appropriate gems, and after losing Quicksliver and Vision, uses her hex powers in addition to the gem(s) and rewrites the fabric of the universe. All characters are now in the same world, sets up Hulk vs Thing, Wolverine vs Hulk and or Wolverine vs Cap (cap annual 8 cover on the big screen) and some interesting possibilities for the future going forward. If it gets Hugh back for a movie or 3, sets up some classic comic scenarios, Disney makes their $ back quickly and easily.
Some fun times ahead, boys and girls.