Keep in mind this is not necessarily what you want DC to do with the GL titles, but rather what you think their plans might be.
Will they stick with the same split between Simon & Jess in one twice monthly book on Earth & Sector 2814 while Hal, John, Guy & Kyle run around space with the twice monthly GLCorps? Or will they change things up?
DC will likely keep pushing Simon & Jess for at least the next couple of years. Presumably one of them will be on one of the various Justice League teams once all the dust settles. I'm not convinced they necessarily need to have a twice monthly comic to themselves, though. With so many Earth GLs with large fanbases, it makes more sense to share the spotlight more evenly.
As for the veteran GLs? I can see Hal, John or both getting spots on a League, too. If DC is going to have any trades to put together in time for their movie, they need to start putting together more stories focusing on their relationship. However, given the complete lack of Shazam comics in the past few years, perhaps that level of planning on DC's part is hopelessly optimistic.
It's a shame that John, Guy & Kyle have been stuck in space for more than a decade now. Surely, with Bendis at DC, a revival of the JLI team could be interesting. Giffen & DeMatties have put the band back together enough times now, it might be interesting to see a fresh pair of eyes on the idea of a more comedic-based League with Guy, Ted, Booster, Fire & Ice at its core. Similarly, I would love to see Wally, Kyle and a Rebirthed Connor Hawke back together doing something. Presumably, Connor's backstory as Ollie's son can be reworked as being from a potential future 20 years from now or something so Ollie gets to stay young and marketable.
Any ideas?