Does anybody have any information on when it will be possible to schedule dashboard refreshes (and easily list dashboards that have scheduled refreshes) from Lightning? Currently this can only be done from Classic. I am not talking about subscribing to a dashboard, I specifically mean scheduling a dashboard refresh. 

There's nothing relevant mentioned on the Lightning Experience Roadmap page but it's clearly a functionality gap as many people have pointed out in several open Ideas on the IdeaExchange.