I started on PS3 then moved to PS4 at PS4's launch, but now I'm on PS3 again (long story). I have Heavensward purchased on PS3 and not PS4.

My question is, if I'm logged out in a Heavensward area, and booted the game up on PS4, will I have errors? Just asking to see if I need to Heavensward right away or if I can wait.