I highly doubt that this time there will even be enough bidders for all 50k coins if the price is >100$
They struggled to find enough last time. Market is saturated.
There may be even
more bidders this time, but it does not mean that the price will be higher.
In auctions of other stuff, there are often "bargain hunters", who bid well below market; their chances are low, but if they win they can make a good profit by re-selling immediately.
Interest may have been low for the second auction because the first one was grabbed by Tim Draper, probably at close to market. The bargain hunters must have assumed that the same would happen in the second auction, so they did not bother to bid. But the outcome of the second auction (fewer bidders, winner was a syndicate of small bidders), and the general perception that Tim Draper made a bad deal, suggests that the next one may close well below market. So the bargain hunters may show up en force now.