Which is…?
Ah, I see. You just want a new Diablo 2. 
I speak as someone currently playing Diablo 2, and taking a Magic Find Necro to Hell difficulty; Diablo 2 is dated.
I love it, I still play it, but it’s dated. Games don’t make progress by polishing the rose-tinted glasses.
If you want D2; Play D2 or D2R. But don’t expect D4 or D5 or D6 to be the ‘new D2’. It won’t happen, and it should not happen.
Also; this is a ‘true Diablo game’ regardless of how thick those rose-tinted glasses are on people. This insipid comment is like saying ‘Final Fantasy 14 is not a TRUE FF game because it’s not turn-based!’ 