Also having this issue on PS3. (Slim console, not sure which exact version though.)

It's frozen I think once since the patch before last night... then last night it froze three times. Once less than five minutes probably since I logged back in (and after I'd unplugged the console for over half an hour and had a fan running on it in case it was an overheating issue.)

Notably, each of those freezes was in Gridania (or when teleporting out of it). Once I remember I was near the aetheryte just walking around, once teleporting out of it to Camp Drybone, I think the other one I was either just walking around or maybe opening a menu. And I think the other freeze (that I can remember) was in zoning out of New Gridania into the inn room there.

Last night I decided to give it one more shot and teleported OUT of Gridania as soon as I logged in... and no more freezes after that point, and I played for probably 3-4 hours afterward. (Yeah, it's anecdotal, could be coincidence... but it's a data point.)