Rabbi Levi Ben Gershon (Ralbag) 1288-1344 [5048-5104]
(commentary on the Torah Vayelech)

" And will return and gather you from all the people whither the Lord G-d has scattered you, if your dispersed are even in the uppermost parts of heaven" ( Deuteronomy 30) This points to our own exile and to the ingathering of the Ten Tribes, because this did not take place yet, and we know this because during the Second Temple not all gathered, and most stayed under the yoke of other kingdoms.

(Responsa, Part 4, 187).

Bnei Menashe
In the past decade, 800 Bnei Menashe have settled in Israel following the efforts of Rabbi Eliyahu Avichail, a lost tribe hunter who took their claims seriously.

Most ended up bolstering religious communities in West Bank and Gaza settlements where they could sustain their faith after their conversion.