ealvizo2012
In direct reference to the approaching Wave:
The Galaxy Cluster is on the order of hundreds of millions of light years distant, so whatever significance there is, it cannot be the Cluster specifically. What is in the foreground, however, might be, as the Milky Way is already forming the Zone of Avoidance (can't see the clusters behind the Milky Way).
You cannot find a needle in a haystack if you don't know what a needle looks like.
I cannot say if something were to pass in front of a Compact Dominant (type cD) galaxy at great distance that it would not be bent (distorted), much the same way that prototype galaxies behind a very large Galaxy Cluster are imaged as arcs of blue light by HST, per Einstein.
i'm grasping at straws here, hoping to get stuck by a needle.
Others might know, hence the question.