Yes and this has been happening since before recorded history. The whole world is a giant ever changing lava lamp of diversity, forms rising and falling constantly. Same as it ever was. Same as it ever was

Example: In the past century, Slovakia has been free Slovakia, a part of free Czechoslovakia, Soviet occupied Czechoslovakia, Nazi occupied Czechoslovakia and a part of Austria Hungary. My grandmother's each spoke like five languages because they had to just to keep up.