eBay has announced that the Dutch Auction style listing will be discontinued.  eBay cites that it is a confusing format to both sellers and buyers, and is not often used.  Current Dutch Auction format auctions must be converted by mid-May.  Here is the original announcement:

In mid May, we will discontinue Dutch Auctions, a little-used listing format in which sellers offer multiple-quantity items for sale in one Auction-style listing. This format – often confusing to both buyers and sellers – comprises only a small fraction of all Auction-style listings on eBay.

If you now list with the Dutch Auction format, you’ll have until mid May to convert those listings to another format, such as single-item Auction-style or multi-quantity Fixed Price. Dutch Auction listings that are live when the format is discontinued will be allowed to run to their conclusion, and Good ‘Til Cancelled Dutch Auctions will reset to a quantity of one when relisted.

Although we are retiring this one particular auction format, I want to emphasize that eBay remains committed to Auction-style listings. We value the format, and will continue to support other forms of Auction-style listings going forward.

Sincerely,
Dinesh Lathi
Vice President, Seller Experience