Support. And you CAN scale it with old contents, but with some limits. Dungeons can be scaled down to half/double their size, which means 4 -> 2-8, 8 -> 4-16.

For people saying this will dumb down old content, are you actually serious? First of all, you can easily put a limitation so there won't be 72 people in Titan. But more importantly, do you actually want Titan scaling so hard that if you get hit by one plume it's an automatic KO?!? I would rather do Titan normally than have Titan so powerful he kills me with any hit.