Just keep it limited to QoL changes and some essential bug fixes:
Charm inventory, ilvl/alvl and min/max stat display, loot filter, stacking gems/runes/UT keys, auto gold, shared stash etc.
Also fix swap casting, desync and other broken stuff.
No changes to items/skills/droprates/loot system and no new content.
Both, the purist and the QoL faction get what they want and the modding community has it much easier to build their mods with new content upon the QoL version of D2:R.