This paragon path has the prereq of worshipping the Traveler(an Eberron Deity). In a side bar, they explain how to convert it for a core or faerun campaign. Does that potentially make it legal for LFR or not?
It's certainly a fair question. The sidebar is a suggestion on how to convert it and not a hard and fast equivalency rule, so personally I don't know how valid that would be for LFR. If we're lucky we might be able to get Tulach to chime in on it... but after the errata debacle, who knows.