I don’t suppose there’s any information about appearances of cameos of other thundercat allies besides the berbils? Mandora, Snow-man, Hachiman, etc. I’m hoping Hachiman at least makes a cameo in this new series. 
See spoiler
[SPOILER]
Considering the blue cat at bottom, I’m guessing that the Snowman of Hook Mountain is in. 
http://s3.amazonaws.com/data.tumblr.com/tumblr_ln9snj7Kzs1qf2okgo1_1280.jpg?AWSAccessKeyId=AKIAJ6IHWSU3BX3X7X3Q&Expires=1312785911&Signature=FQvwPEiIEi76TNpUXdSvoiHFiJ8%3D[/SPOILER]