Board Thread:Lore Discussion/@comment-10561605-20130820164006/@comment-25047024-20140115152253

Runesfuer wrote: why do you think this? nothing ever says this, and it isnt closed off. the deadra in skyrim proves this

The mere fact that Nirn doesn't need a Dragonborn emperor anymore already proves that the barrier is permanently shut. The barrier was also never supposed to stop ALL daedra from being summoned to Nirn; It was only supposed to prevent an entire army of daedra to enter Nirn.