I think you are thinking of the dura-ace 9 speed shifters, which are still made and which will also work with DURA ACE 8 speed ONLY.

The 8 speed ultegra shifter hasn't been made for some time AFAIK and I do not see it offered on their site. I have a set, they are the best touring barcon period, IMHO as I consider 8s shimano the most practical, cost-effective and durable system around.