The Aliya to Israel of some of the 100 million plus Bnei Anusim (descendants of Sephardi Jews forced to convert to Christianity) could be larger than the return of the “lost tribe” of Ethiopian Jews. Many are discovering their Jewish roots and connecting with Israel.

http://www.jns.org/latest-articles/2016/9/27/how-exiled-spanish-and-portuguese-jews-are-returning-home