I hope there won't be any because epic gems always have shitty way of acquiration (cooldowned, reset limited etc.) and skew rare gem prices a lot (while i can craft however many i damn well please as long as i can support the mats)
They shoud fix PVP gems instead, the 70% nerf in 5.2 made their prices hit rock bottom (aka vendor value). I used to sell many primary stat + power, or power + resil gems for 100g+ per cut, now 4g rofl. Completely useless shit at this power level, better off gemming regular stats.