"Did the assemblies that sided with Perth in the 90's split and the assemblies that supported Falaise Rd. meeting in the later early 2000s split have a reunion or reconciliation?"
No, there has been none. There is a varying degree of animosity from individuals on the Nepean (Falaise Rd) side, with many being very cordial when we meet at funerals or other events. There are a few who will not greet or shake hands with any on the Perth side. I do know of individuals who have "changed sides", in both directions.
"Does the smaller group have an online presence (Youtube, Websites of ministry) or magazines or publishing houses for their ministry (like BTP). ?"
None that I know of. Individual assemblies may have a website for their assembly, but that's all I know of. Really, the numbers just aren't there to support much.
"Who are some of the leading brethren in the smaller group (like B Anstey )?"
Well, there is nobody I know of who has that kind of influence. I consider that to be a good thing!
Much of the division can be laid at the feet of one brother having far too much influence. One of their "laboring brothers" said something very telling to me before the split was finalized. I asked him a simple question: "If the actions of the brothers at Nepean had been carried out at some small assembly in the South, so obscure that nobody would know who they are without looking them up in the "List of Assemblies", would anyone even think of supporting such actions?"
I think his response told the whole story: "No, but it wasn't done at some small assembly. It was done at Nepean, so we HAVE TO support it!"
Might made right.
Or as an older brother in Buena Park put it, referring to Nepean, "Oh, I think it would be a SIN to even QUESTION anything those brothers decide!" Meaning, of course, one particular brother. This was years before the division, on an entirely different matter, but it illustrates the influence he had with many.
Part of the problem was wrong doctrine, of course. The truth that there is ONE body, not many, was warped into the idea that if an assembly acted on a matter, that action must be accepted No Matter What, and no nearby assemblies had anything to say about it, no matter how egregioius the action. Or, as mentioned above, "whoever shoots first, wins".
Contributing to this was the doctrine, held by some, that an assembly acted with the Lord's authority, and was therefore infallible. I could never understand why people who espoused that view didn't say a Hail Mary, or at least cross themselves, when they spoke it. ;-)