From Zohar's posts it looks like we're not limited to 100 yards, but instead the order will be placed for exactly however many yards there are buyers for. Do consider that this fabric is untested by us and that Josh has said that he wasn't very happy when dealing with this mill previously.
You may want to be conservative in your order this go-round. That's my strategy.
If this fabric turns out on spec and further doesn't suffer from something like stitch hole elongation, it would be prudent for a distributor to the MYOG community such as Ti-Goat, OWFInc., or DIYGearSupply to place a big old order and offer it to us retail. If it turns out to be a dud, well, then we all took a small share of the total risk and all learned a relatively inexpensive lesson. For now it's just a waiting game until we hear back from Josh or Zohar that the order has been finalized to their satisfaction and the ETA of the fabric stateside.