Street Legends is, sadly, one of the worst-selling books in the line. Not sure how well 10 JackPointers did, but I'd imagine it's in similar dire territory. As such, I would doubt another gets made but, hey, never know. I mean, *I* like 'em both (And own 'em!), but, I'm in the minority.
Are there any JackPointers who'd you'd like to see explored more in particular?