I'm trying to figure this out as well. I didn't even know Gol TV was launching a HD channel until it got announced here.
Since it's the end of the EPL/ Serie A seasons anyways,
Direct TV may just wait until it starts again in August before launching it in HD so they can get other channels up first. MLS fans will be a bit screwed in this scenario.
A bit ironic that Direct TV sponsors FSC but don't show the matches in HD yet