If u do notice, the news is around a year old.
So at least one of the dth's would have added the channels in the 1 year time period. the only reason its not available in any dth is just because SUN is reluctant to sign a deal with other dth providers.
I suppose the only reason SUN is selling its HD boxes in the south is because only they have the SUN HD channels and not others. If you take any other HD channel, it will be available in at least two of the dth's if not more. Its clear that SUN wants to sell its HD boxes by advertising their own HD channels.. otherwise there would be no takers for their boxes.
So I can't see these channels coming to any of the DTH's in the near future.