SE has only moved away from DoTs as the game has aged. I'm doubtful they would ever add a DoT-heavy job in the future. Maybe we'd see a new job that has some DoTs, but likely not more than say.. BRD has. At least back in the day, BRD DoTs mattered. If they critted on a tick, they'd get a stack of repertoire. Instead they made BRD play like PLD. Their gauge just goes up for existing (for the most part). Personally, I'd like to see a DoT heavy job. But it likely wouldn't work unless they changed the 2 minute burst window.

As it has been stated many times, that burst window stifles any creativity they could have. There are so few aspects of battle that require group cooperation. One of the last bastions of group coop is the burst window. They'd have to drop that and add something else in its place.