Baldur's Gate had both RTwP and Turn based. While RTwP was the default setting, it was possible to change it to pause after each turn. They should implement both ways of playing like the Baldur's Gates games offered.
Also Sword Coast Legends did not fail because of it being RTwP, but because it didn't follow the rules of D&D.
The "pause after each turn" option in BG isn't equivalent to a turn-based solution, because it doesn't offer any of the commodities a turn-based game would give you - most notably clear Initiative information which is critical for strategical planning in a battle.