Sorry for not having a link. But one article quoted a AD or Pres as saying the consultants would help determine the ideal conference size, and indicated it wasn't just deciding between 10 or 12, but that 14, 16 would be evaluated, too.
I think it is unlikely. But I also think B12 wants to explore all their options, make a decision, and then be able to say it is a long term, stable, thing.