Only so long as they're not in fear for their lives. Once they are truly aware that Israel is going to pull the trigger on them personally, they'll stay dispersed and they know very well that the time for Israel to bide their time is almost done. Israel is on a much tighter timeline because of the urgency on the ever progressing Iranian nukes. If they come together it will be in areas not open to attack and with Iranian intelligence bird dogging the gathering to insure MOSSAD and the far less effective CIA don't have eyes into the event.
Love to see you posting.
Health and wholeness to you.
Right now with the political situation over there if the Iranians all got together their own people would also pose a huge threat.