I don't think it will necessarily look like Cats. I'm assuming you're talking about Cats the movie. Even Cats the musical looks better than Cats the movie. If it looks more prosthetic and practical, it would automatically look better, just like even something like An American Werewolf in London looks better even though done in the 80s.
Only if it's completely CGI and uncanny valley will it look like Cats. I'm sure that even if they came up with that originally, they must surely have learnt from Cats' mistake now and hopefully gone back and corrected it.