If that was the case , you would think that the close galaxies like Sagittarius ( at just 75,000 light years )would show some evidence of that. Presumably, if the expansion ended, the collapse would effect all bodies within the universe in a similar fashon, us and our nearby galatic neighbors included. We should need to see things beyond the redshift to know what direction things are heading in.
First, let me thank you for a remarkably restrained and measured reply to what must surely have been an outrageous post. I'm violating one of the number one rules of astronomy - positing that we are observing a unique time in the history of the universe.
I'm wondering, what if the reversal took place in extremely recent times, say, the last several thousand years. We'd still be catching the light from galaxies that were outbound, but we ourselves are inbound. But what about the nearest galaxies? Andromeda, for example. What is their relative motion? Have we tried to explain any aberrant motion by saying they are part of a local group? What if they're actually falling in with us?
Again, wild, outrageous speculation - the kind that makes you want to go out and drink.