According to the latest data, the Pfizer vaccine that Isreal used is 99.3% effective at preventing hospitalizations, compared to 99.6% for the other strains it was originally tested against.
Given that the vaccine seems to turn the delta variant from a potentially serious, sometimes fatal disease, to a mild annoyance, I would think that plans could proceed as normal.
At a certain point, when Covid ( delta variant or not) becomes less dangerous than the Flu or Rhinovirus, it may not make sense to worry about.