Edit: The PTS is now up, without any hard mode version of these flashpoints.
The PTS didn't go up yesterday but the patch went out and we can see from the datamined info for the patch that no hard mode is available for the new Korriban / Tython flashpoints.. Only tactical.
This is a pretty major oversight to me. Kuat being Tactical only was fine since it wasn't the start of a major new story arc, and was trying out some new mechanics. A major piece of content like this though not having a HM just shows that we can't expect much in the future for flashpoints, and I'm not sure how any of these bosses can be considered 'epic' when most 55s will be able to solo it without much of an issue.
Hard mode flashpoints are pretty easy in their current state but atleast you need to utilise the trinity and pay attention to mechanics and it's an absolute must for these flashpoints IMO. It seems they are introducing a new weekly for completing 5 Tactical flashpoints that will reward elite and basic comms so we could really use a new tier of HM flashpoints that are a bit harder the current tier.