IOTL, in Eastern Europe the most common form of settlement for Jews was the Shtetl (meaning "town" in Yiddish), small towns that were mostly or even sometimes wholly Jewish. The Jews worked as villagers much like their Christian neighbours, and lived their own unique Jewish lifestyle, differing themselves from their surrounding non-Jews through the practice of Judaism, of course, and also through their language - Yiddish.
So I was thinking - what if the Jews of Spain (Sephardic Jews) were not kicked out of Spain and Portugal, and instead stayed in those countries, keeping the Jewish population large. IOTL the Jews of the Iberian Peninsula were mostly city-dwellers, not farmers, but let's say that through a gradual process of Antisemitism and discrimination the Jews are partly pushed out of the cities, and found their own villages, with their own lifestyle, having some sort of autonomy and speaking mostly Ladino.
I though this is a pretty cool idea, but I don't really know what effects this is going to have on Sephardic culture and how Judaism in this TL would look like. So, any ideas?