Come Down The Pike Meaning

(idiomatic, of an event, thing, person) To emerge, come up; to approach or arrive on the scene; to present (itself or oneself).

Example: 1902, Ralph Henry Barbour, Behind the Line, ch. 11:
  "[T]hey're the finest football leaders that ever came down the pike."
1949 Nov. 14, "Art: Many Ways," Time (retrieved 6 July 2014):
  Alfred Stieglitz was the best photographer ever to come down the pike.
2014 May 26, Amy Verner, "Trends: From Humble Sneaker to Luxury Icon," New York Times (retrieved 6 July 2014):
  â€œFor me, it's a harbinger of larger cultural changes coming down the pike.”