I am personally okay with Option 3, as that's how I've pretty much been running the campaign to this point. Extended and short rests work better for these adventures as narrative breaks (for me, breaking them up by Acts) rather than the result of actual sleeping.
The first time the ritual was used, there were some ripples backward in time prohibiting teleport.
So we could also have some ripples from the great event at the end. But this time it would be something making rest impossible or without benefits.
