They probably didn't mention it in the preliminary patch notes because they don't want to 'give away' the prices. I can understand this, although I am very anxious not knowing the prices... as my FC has saved for a long time to get a medium, and it will be extremely disappointing if the prices for mediums are incredibly high and outside of the means of our current savings. Plenty of members have and are willing to donate much more (myself included) but not knowing the price to save up for prior to the patch means that FCs with more savings in their bank could just snag all the mediums up immediately. I suppose this is only a very real fear on high population servers.