Myers wasn't on the Phillies ALCS roster and almost certainly won't be on the World Series roster. The Phillies have enough arbitration raises(and possibly inking Jayson Werth to a long-term deal) that they probably won't even bother offering anything to Myers. He won't net the Phillies any compensation, so there's no need for them to offer arbitration. Myers had hip surgery in 2009, and he pitched poorly before and after it, so it's possible he comes cheap. You might remember he was the Phillies closer back in 2007, and he actually liked the role then(he was upset when they got Lidge and made him a starter), but I'm not sure how he feels now. Anyway, his stats as a reliever in 2007:

53.1 ip 46 h 17 er 64 so 18 bb 2.87 era

His FIP was 3.75 according to FanGraphs but I can't figure out how to split his time starting and relieving there(he was awful in three starts, an ERA over 9 in 15 innings and those innings could've helped kill his FIP).

If he comes cheaply, I think he's worth trying out as a reliever again.