Just contacted DP and thought I would pass along the info I was provided.
Their minimum order for in stock fabrics will be 50 yards. Fabrics that are not in stock currently will be 1000 yard minimums, which isn't anything too new.
This applies to both their 1st and 2nds.
They say for "small fabricators" that Rockywoods will be stocking the fabric. From what I can see, Rockywoods currently offers the Xpac they always had and VX21.
I am still pretty well stocked on DP fabrics for now, but it looks like in the future, group buys will be the best option to get 2nd fabrics or anything not stocked at Rockywood.