A passage in The Silmarillion tells about Lúthien:
Yet in her choice the Two Kindreds have been joined; and she is the forerunner of many in whom the Eldar see yet, thought all the world is changed, the likeness of Lúthien the beloved, whom they have lost.
Of Beren and Lúthien, p221
Who are those "many"? Does it refer to some of the Elven maids who bore the resemblance to Lúthien (most notably, Arwen), does it include males also? Or is it about something else entirely?