For me, I'm not all that interested. Especially in a sequel. What are they gonna do? Go through the conspiracy of the post squid world? We sorta KNOW it will be revealed. Or at least brought up.
A preguel... maybe. But, are the early life of those characters SO interesting as compared to their DCU counterparts?
While it's obviously a cash grab, it just doesn't seem to be a particularly INTERESTING cash grab for me.
I would rather they do stuff with new characters and/or DCU characters.