We consider the moon to have no atmosphere. There may be very small traces of some elements, but not enough to constitute an atmosphere. If there is no atmosphere there can be no wind, as there will be no air to move around. With no wind there is nothing blow the footprint away, so yes, Buzz Aldrin’s footprints will still be there on the moon, as well as any other footprints left by the 12 other astronauts who have been there.
Claire Butler, Science Museum