It has always amazed me how the WTS insisted on splitting congregations at precisely the time they become healthy, vibrant organisms. In my 30 years "in," I saw a number of splits take place. These were almost always unpopular with the rank and file and almost always driven by either a self-aggrandizing CO (who wanted to report how successful his ministry was and present the split as evidence of growth) or by egocentric elders who worried there weren't enough important positions to go around.
The amount of politicking that went into making up the rosters for these new congregations resembled nothing so much as a back-room deal in any large American city during an election. Favors were traded, markers were called in, and guys jockeyed for position shamelessly.
It would be a major embarrassment for the WTS to start consolidating congos. I would think they would fight this trend because it looks like they're losing the battle. And I would guess most of the elders wouldn't like it, either (the infighting would be horrific).