I was wondering if anyone else caught the Thundercats premiere this weekend.
I did and overall I enjoyed it. It's a "reboot" of the series, but as a whole they kept the good things about the show and nixed the nonsensical things.
Changes: (There shouldn't really be any spoilers).
In the old Show the cats fled thundera in a space ship because it had been overrun by the mutant hoards (which were assumingly from another planet). All of the cats (with the exception of the twins) were apparently in their late 20's to mid 30's except for Lion-O, who appeared to be around 12. During the long journey the cats are put into hypersleep, but lion-o's chamber malfunctions and he wakes up as a grown man, who just happens to be the surviving air to the thundercats. The planet they land on (and the pursuing mutants, crash landed on) turned out the be the homeworld of mum-rah, and in typical old-man fashion he attacks the cats weekly in a "get off my lawn you dang kids" fashion.
Now in the new show the cats share thundera with a whole host of sentient animals. Although the lizard men (and assumingly other races) appear on the show they are no longer mutants and just considered to be another animal race. Now this is the only thing on the new show that truely bothers me, multiple species evolving to human-like status on the same planet? Nah.
Every other change, as a whole is a positive one. The cats are now much younger, with cheetara and tigro in their very early 20's, lino-o maybe a hair younger than that and the twins as children. The twins (wily kit and kat) have been recast btw, becoming impish street urchins instead of spoiled royal brats. The change fits them well. Mum-rah is now an almost forgotten ancient legend as well as the book of omens and it's secrets of "technology". This means that mum-rah actually has a reason to attack the cats, which is good, except for the lack of tech. That part has me a bit puzzled seeing as how one of the main draws of the original thundercats was seeing all the cool things panthro would build. But we are only one episode in so we'll see.
Also snarf, thankfully, has been reduced to a silent house-pet.

The art style is good, but it's very "anime" which I'm not a fan of. Although the quality was crappy I think I preferred the style of the original show. That being said, it does look very impressive with properly drawn characters and backgrounds. None of this teen-titans/new transformers hack job crap.
As a whole the show reminds me of the reboot of he-man from a few years back with everything at a much higher quality. Unfortunately it has the same flaw as the he-man reboot did in that it takes itself just a bit too seriously.
It's something to keep an eye on though so watch it.
p.s. The original voice of Lion-O does a guest spot as lion-o's dad in the new series, so check it out for that if for nothing else.