There's also mods for Diablo 2. Blizzard's updates for the game seem to focus on killing those.
Many people recommend Median XL, I personally think that if you jsut want to play Diablo 2, except it's better, playing Path of Diablo, it has its own updater so you never even touch the original game's updating software and I believe it doesn't matter what version of the game you have so long as it's Lord of Destruction and at 1.12 or so since it literally just installs a full core of its own version of the game in a separate folder so you can still play LOD vanilla AND Path of Diablo.
Why on planet earth would anyone play Diablo 2/3 when Path of Exile exists?
Unless they drastically modify the game (they won't, hence "remaster") every man, woman, and child on earth knows how to beat Diablo 2. It's been completely solved for like 15 years - there's 0 challenge.
1. no Offline
2. Not moddable.
3. Badly optimized, those cosmetics are not toggleable on my end, I can't choose to hide other players in towns and it runs at 4 fps in most towns.
4. I personally get disconnected form PoE servers every 1-60 minute(s) due to "Unexpected Connection Error" and so I literally have to endure the game's bullshit netcode in order to want to play the game.
Or I can just play Path of Diablo, Torchlight 1 or 2, Diablo 1 from the gog version, or the DevilutionX version, Grim Dawn, Titan Quest, I'd say games like Inquisitor, but my computer is a mid-ranger from 2012 with the CPU being a weak one for the time so my ability to play even Resurrected is beyond both it and my income.
Honestly My opinions on Resurrected are as such:
1. It's going to stutter, Starcraft Remastered stutters pretty bad at times, Reforged also stutters.
2. It's going to run badly, long load times, less ability to display as many things on screen, I expect that when a gigantic ton of items drops on the ground, the game's gonna chug.
3. Any bugs like Minions being despawned when trying to teleport to the player and failing to do so despite there being tons of empty space to fit them, which exist more often in multiplayer but also exist in vanilla singleplayer, will 100% still be in the game.
4. Classes will work differently. Skills will likely be changed or adjusted to decrease server load, expect this to more heavily affect minion builds with lower minion maximums.
I honestly don't think it's possible to justify re-releasing a game as a remaster and not say... it being an optional expansion pack, considering it's just an excuse to sell an ancient game for retail price, however that manifests going company to company.
Ultimately you're buying the same shit you played 5-20 years ago for way more than you'd otherwise be willing to. The people who buy remasters to start with aren't the type who embody the spirit of saving your money for shit that's actually worth it, they're more willing to play Genshin Impact and call it a good game because that's what everyone's doing.
Then again, I'm the type who believes that Diablo 1 is the high point in this genre and has a design that is functionally nearly perfect unlike most other games in it, and that graphics only matter to the point of the game being comprehensible, beyond that, it's just a worthless film I want to scrape off so it'll run better, but can't.
3D graphics are cheaper, but in my opinion they just look worse and any 3D game is always less readable than even games with sprites of the same 3D models. There's a certain aspect between the two examples that 3D almost always lacks, but is inherent to 2D that I can't quite explain properly that makes games more easily recognized or read so as to figure out what is what in the game.
Tl;DR - 3D yucky, Blizzard shitty, Play Path of Diablo if you want Diablo 2 with QoL additions. The Necromancer has a long-cooldown teleport spell in the summoning tab and the Sorceress has a level 1 cold-damage enchant skill, just to name two of many examples. Also huge super levels you do at max level, basically Path of Exile's Maps.
PS - I've also heard that D2:R's Open Beta is actually just "Preorder and get access to the game", told to me by a relative who literally preordered it.