So far, DC’s newly-launched revamps of classic Hanna-Barbera cartoon properties have ranged from fairly traditional takes (Future Quest) to radical re-imaginings (Scooby Apocalypse, Wacky Raceland) with not much in-between and, if I’m being brutally honest, fairly limited success. Scooby Apocalypse is an atrocious mess, Wacky Raceland is at least an interesting mess, and Future Quest — well, even a hardened cynic like yours truly has gotta admit that book is just plain cool. Into the breach next, then, comes writer Mark Russell and artist Steve Pugh’s updated version of The Flintstones, and if the first issue is any indication, it seems to be the first of these titles to stake out something of a “middle ground,” remaining fairly faithful to the core characters and concepts but updating them for a contemporary, and somewhat older, audience. Sure, there’s nothing in here to prevent 20-something, 30-something…