That's not Lion-O's dad. That -is- Lion-o.
To me it looks like a sequel to the comic books, where they establish New Thundera and so forth. The trailer shows a hint of Mummra at the 14 second mark, and we see an older Tigra/Cheetarah in the trailer too.
So the revival is about Lion-o's kid. Also, the reason it looks so anime-esque is because the revival is being handled by a japanese studio.
And blind guy wasn't even remotely Jaga. Jaga was the dead obi-wan guy.
Blind guy was Lynx-o, one of the new thundercats that showed up mid-series. Or as was mentioned, Claudis (Lion-o's dad), was also blind too but he didn't really matter.
Edit: Also...sort of related (not really?): <a href='http://www.youtube.com/watch?v=QtTZu9OlypU' target='_blank' rel='nofollow'>http://www.youtube.com/watch?v=QtTZu9OlypU</a>