[MHGinTN]

How far away are these 'holes' and how long until the 'seen' images unite? How fast do 'grabitational' waves travel through the universe?... I'm guessing, but it seems like the two holes are likely now one and the gravitational waves should have long since passed us.

[Doctor Stochastic]

General [it's only a] theory predicts that gravitational waves and other disturbances travel at the speed of light, so: What You See is What You Get.