Who do you think will get first to the wildlings in Hardhome? The Others, Lyseni slavers or Braavosi anti-slavers (this last one is very speculative, it comes from a theory saying that Braavos is rising an army)?

If I recall correctly, the Lyseni slavers got there first, but they got arrested in Braavos. 

Now the Night’s Watch and Braavosi anti-slavers are there, but the wildlings are refusing to leave, and there are wights everywhere.