While our interview with Respawn's Abbie Heppe at E3 last week (on the site soon) centred around the team's continued work on their studio debut, it seems that's not the only thing in the pipeline for the Titanfall creators.
A sign of what might be coming is a job position for senior character artist on their careers page, which states they're looking for someone with "experience working on 3rd person action/exploration games".
It was recently announced that game director Stig Asmussen (God of War 3), previously of Sony Santa Monica, had shifted to Resapwn, and it's a reasonable guess that he'd be making another third person game, since it was confirmed that he wasn't working on anything Titanfall-related. And beside Asmussen, a total of eight (!) other people at Respawn have a history of creating games in the God of War series.