It's always nice to see Peter Milligan get some mainstream attention. CBR recently interviewed him on his upcoming Secret Seven miniseries. You can read it here:
I haven't had any interest in following DC's Brightest Day maxiseries, which recently concluded, so there are some spoilers. The interview also briefly touches on the news that John Constantine (as well as Swamp Thing) will make their return to the DC Universe proper, with the caveat that Milligan's Hellblazer run will remain unaffected, and Milligan's thoughts on such developments.
Something like a decade later, DC's finally learning from what Marvel accomplished by setting the Punisher in his own little MAX world as well as integrating him into the mainline Marvel Universe.