The one thing I loved about the early movies was the Quidditch matches.
To see the Wronski feint - would be magical. Maybe they can film a 'great Quidditch matches of all times' movie or something. (I know they won't - but it would be great if they did)

To not show winky in the Goblet of Fire was also ridiculous. Without winky - there can be no 'SPEW'. Without SPEW the significance of Dobby's burial, of the elves fighting alongside wizards simply isn't as significant.