It was enjoyable, but nothing really interesting.
Yeah, this is Tumblr fanon stuff, It's literally how they depict them in thoses fan art from that site. Jason has the white hair, Damian has a tan, Babs is back at being all Oracle, Tim has the combined pre-new 52 and the new 52 outfit.
But they kept the Orphan code name for Cass, which is weird since Babs is not Batgirl in this.
Anyways, it will 100% be popular around the internet. Tumblr and Twitter will feast on this. I'll keep reading since it's short and free.