FUNimation appears to be prepping a release of the first season of Tsubasa on Blu-ray in 2009 as there is a placeholder page of sorts for it up now on the official FUNimation site. The planned release date according to it is likely incorrect as March solicitations are already out and it's not on it and the trailer for the page isn't operating yet either. Tsubasa was animated in high defition and recently aired in Hong Kong in that format, not an upscale.