I should imagine that HAES sizing is going to take over  It already is.  Just went to Burlington coat factory yesterday thinking to buy some new shirts and a pair of pants.  To start, what I thought was a men's store is 3/4 women's cloths, and of what's left about 4/5 are of the "big and tall" variety.  I found about 6 pairs of pants in 30".  6 in a giant store, one of which actually fit me. Not to mention the front 1/4 of the store was dedicated to selling various forms of beetus.