Most modern languages morphed from another. Nothing changed to prevent this cycle,but it takes at least a few hundred years. I suspect a form of english would

Most modern languages morphed from another. Nothing changed to prevent this cycle,but it takes at least a few hundred years. I suspect a form of english would dominate for a few hundred years no matter the country. There are plenty of non-western countries where large populations get displaced due to various reasons as well,so long as people get transplanted in large numbers,they will always merge their original language with the new one. Although,america is an exception due to it's unusual tolerance of multiculturalism and segregated foreigner communities.