Even if this happens there will still be war, Iran and Qatar will continue to fund the likes of Hamas in their fight to eliminate Israel, they pretty much say so all the time when they talk to Arab media although they water it down when talking to western media, Radical Islam doesn't compromise...
Once Islam touches a country it never leaves, fact of history, yet in many Muslim countries you've seen all traces of Christianity, Judaism, Hinduism, Buddhism and Paganism disappear through govt policy and violence and intimidation on lower levels.