Guild Wars 2

I’ll say right now:

1. “Nightmare Tower” (all the three floors) or “The Nightmares Within” istance.
2. “Escape of L.A” attack/evacuation or Last Event of S01 (Awakening of a new elder dragon perhaps?)
3. Marionette Encounter (last fractal like jade maw), only platform parts with the five champions to be killed in sequence.

… 4. New fractal beyond these ^^

I would like that, fractals need more diversity. Perhaps ArenaNet should even consider creating a random encounter generator, not just preset things which get boring after the second time you went there and know everything there is to know about them. Especially in the fractals where randomness should actually be a thing.

I definitely think the nightmare tower will be added.
I think they’ll do what they did with the Aetherblade fractal thou and split it into ascending the tower and then have a separate boss fractal.

Marionette is not going to happen. The mechanics would need an extensive rework.

The Marionette would be tricky, but maybe it could be alternate reality.
Like we actually get down to fight her on the ground.

The preevent would be each player taking a plattform (of their choosing, so they can prepare and take what they are able to fight against)
and then they all take it down, as the marionette is on the ground, throwing around his body and loose chains to jump over…