Any use of CGI in TNG will have to be replaced, it's not a matter of wanting it. It's gonna happen. And because CBS-D is not George Lucas, it will be replaced with something that honors the original effect.
The aliens in Galaxy's Child, the return of the Crystalline Entity, the comet and archive in Masks, the shattering effect in Frame of Mind, the lifeform in Emergence, etc. All of those things are either outdated for today or completely lost, or both.
The only "change" I want is correcting the phaser mistake in Darmok. Any other change would be akin to pulling a George Lucas, and would be a disservice to the show.