Are there any plans for Exotech Stim schematics do be obtainable any other way than through random trash drops in Raids?

Are there any plans to add Exotech Stim/Adrenal Schematics to the Daily Comms Vendors or even a boss kill? I have consistently raided story & hardmode/nightmare mode's with my guild every week since the game was launched, and I still don't have all of the Exotech Stim Schematics. Honestly, I have not seen one drop since February. I'd like a more sure-fire way to get Exotech Stim Recipes so I don't have to nag my Raid group to kill every trash mob for the slight chance of getting another schematic.