Sounds like a marketing department answer to me. Most companies won't say when new stuff is coming, as it would cut into sales of their current products. Rotel could very well have a DVI player in the works now, but they'll not likely say a word until it's ready to ship.
My issue with them is the lack of SACD. If/when they ever put out a universal player with DVI out I'll be first in line waving my credit card for one.