They first hit the shores of Long Island City over a decade ago, newcomers to the area who eventually put Queens on the map as a refuge from the real estate frenzy in Manhattan and Brooklyn. When their numbers grew, they started spilling over into neighboring Astoria and when the buzz there picked up, pushed further down the subway line into the borough’s interior toward long established neighborhoods that had their own identities, such as Woodside, Sunnyside and Jackson Heights and even deeper into the borough, reaching Rego Park, where luxury development has been on the rise, and even Jamaica.