Source: Maina.com, Bleeding Cool.com

Bleeding Cool has managed to acquire a snapshot taken at the
London Toy Fair that shows off an image from the upcoming 2011 series
for Thundercats that will be coming from Cartoon Network this year. The
series is being animated by anime studio Studio 4°C which is known for
their work on the Animatrix and Gotham Knights. the new series has some
known talent behind it with am Register handling the exec producer
duties while Michael Jelenic and Ethan Spaulding are producers.

According
to what little is known via Wikipedia, "The show has been hinted at
explaining Lion-O's climb to the throne with a more original anime feel
and darker style.[17] In early November 2010, former Lion-O voice actor
Larry Kenney revealed that he would be playing the role of Lion-O and
Tygra's father Claudius in the opening three-part episode of the new
series."

So yeah, comments, questions, con-

Wait a minute! Is Tygra holding a GUN? WHA?

Well, I guess the whip with three balls attached to the end didn't look as cool as a lazer gun.

Thoughts: I can't wait for Cowboy Thundertank to premire on CN. With that said I actually don't mind the new look as (unlike the original) each character from that promotional poster look different, build wise. Just hope that the acting/ dialouge has changed as well !