Indeed, but the DA-50 is what in the software business is called "vapourware", and currently anything from Diamond, including their current products, is in more or less that category because it is pretty obvious that the future of the company itself is not exactly assured.
Just seen yet another DA40 taxi in, followed closely by a couple of fire engines. Very sad for the businesses, and the private owners, who trusted this bunch of double glazing salesmen.
Diamond knew exactly what they were doing when they sold the DA40-180 avgas version only in the USA.
To paraphrase Clint Eastwood, do you feel lucky enough to be a beta tester for yet another product, especially one coming out of a company whose cash flow must by now be clutching at every straw they can find.