Ah, interesting.  I was wondering why I hadn't seen an official source linked. The same source also released one for 
Aladdin, so I figured its authenticity could be bolstered.  It's pretty, regardless. 
Your link isn't working, by the way, but I found the picture: 
https://i.huffpost.com/gen/1415379/thum ... -900.jpg?6  There are some differences in the pose of the adult lions (slightly different angles and resultant silhouettes) and the cubs are totally different, but it does look conceivably "false".