I talked to them last Aug/Sept (can't exactly remember) and got basically the same answer: no plans to make a Fury seat. I left my email address with them (all this was done by phone) with instructions to email me if they changed their mind.
Looks like they did change their mind and added it to their line-up. Better late than never, I say. There are many more companies not yet making products for the Fury. My strategy is to call and let them know there is a market for their products. I don't know how many calls it'll take - 10, 20, 100? But the better companies will be keeping track of the requests and will market a product accordingly.
Mustang was keeping track, as evidenced by their email to me. They perceived a market and have taken steps to meet it. For that, I give them a big THUMBS UP! I hope they can produce a comfortable and good-looking saddle.
BTW - Mustang never did offer a seat for the Wing. I always thought that was strange, but there were a lot of other companies in that market. I guess they thought it was too crowded for a good return on their investment.
I'll let you know how it rides when I get one.