I made the CGI version simply to learn how to use 3D software - it's far from perfect but it shows what's possible for a complete beginner to achieve in 4 months. Here it is side-by-side with the original opening.
Check out the CGI version here: https://www.youtube.com/watch?v=SgonBJvVgsw
ThunderCats is of course the property of Warner Bros. and its affiliates, and this video should be in no way used for financial gain or commercial use. This video is not associated or connected to Warner Bros. and is simply a fan film made by and for fellow ThunderCats fans.