In the last 24 hours Leonard's European tour itinerary has stopped listing the Tel Aviv show. (Until 22nd June it was at the bottom of that list as the last date on the tour, below the Barcelona gig on 21st September.)
The leonardcohen.com webmaster notes on the discussion forum that AEG Live requested him to remove the date without giving a reason.
Another moderator of the group points out that dates have disappeared and reappeared before, so it could just be temporary.
Certainly we would hope that if the show had been cancelled because of the growing opposition to it, there would be some kind of announcement from the Cohen camp to that effect.
In the meantime watch this space...