Do you count the Rogue One type as an OT trooper? I know they made some adjustments to the helmets, but they are still meant to represent the same type of Stormtrooper. Not something totally different like a Shore- or Deathtrooper.There are enough subtle differences to the ANH vs ESB Stormtroopers, in helmets, armors and even E-11 blasters. But is this enough for HT to make the ESB Stormies? I kind of doubt it. Though I know I would buy a pair of ESB TK's.
The thing is that the OT (ANH, ESB, ROTJ) Stormtroopers are not present in the new movies and series anymore. They have been replaced by different versions, which are becoming the cannon for the Disney Star Wars.
Because there were regular Stormtroopers running around in Andor.
Although it seems like toymakers are ignoring that show altogether.