You just do Greater Rifts which are the same at high levels as they are at low levels.. just with different numbers. You do these to get better chance of leveling up your gems and better EXP if you care to gain obscene amounts of Paragon levels. All of these are like 0.01% upgrades on your character per level.What is D3's endgame like these days? I remember at some point they introduced a system similar to PoE's maps, but lame... Like some kind of randomised string of areas...? Has there been anything else, or have they refined the system at least?
Is the loot still trash?
You try to chase Ancient Legendary gear but the rest of the gear is easy enough to find.