An attrition system will never happen, there is plenty of data to back up the fact that the majority of mainstream rpg players do not like them, so I doubt Swen would ever take the risk. It doesn't change the fact that I would really like one though and I bet that this is something that there will be a mod that fixes it. It isn't going to stop me from asking for 1 though, even if I will be highly surprised to see 1 implemented.
That's a depressing thought.
Whatever happened to making the games they wanted to make instead of the ones driven by the marketing departments of big publishers? That was one big reason why Larian went all in on Divinity: Original Sin 1 through Kickstarter.
