Just a reminder that WoW went in this direction.
3 Million Unsubs later, they nerfed the then current raid tier (firelands) HARD, then later released the LFR tool and 3 easy 5-mans that crap epic loot of the item-level needed to hit the final raid raid tier. They also gave people free level-cap characters, mounts, etc if they resubbed. And you got D3 for free if you bought a year-long sub so their numbers wouldn't further decrease.
Catering to grognards kills your MMO. Sorry.