I'd say that there's an extremely good chance that the banned players would have made a significantly bigger impact than will their replacements. That's pretty much guaranteed.
And that makes for a significantly different tournament.
Not to mention that no points being awarded will surely take away a degree of the motivation of some players.
Whether the controversy of this year's Wimbledon will be remembered or forgotten in coming years depends more upon how much more people become obsessed with trivial things like 'social media' and 'celebrity lifestyles' than it depends on the actual impact the Wimbledon bans create - because every year, trivial fluff takes up more and more space in people's thoughts than do significant, important matters.