Extremely unlikely. The sad fact of the matter is that "DS9-R" simply is not nearly as profitable as the TNG blu-rays. DS9 has a loyal following, which is a good thing, but not a *huge* following, which is all that matters in terms of something they're pumping out for sales. The process to convert TNG to HD is, technically speaking, a huge pain. They won't go to a lot of trouble to bring DS9 up to more modern visual standards considering the lesser popularity.
Don't get me wrong, I'd absolutely LOVE to be able to have blu-rays for DS9 and VOY, but it probably won't happen.