Folk thinking about earth-like planets will probably need to get their expectations in check before further announcements come along.
Even going back to 2014, they said then they'd do airless moons and asteroids first, followed by barren atmospheric worlds like present day Mars, before moving on to more complex atmospheric worlds.
The visuals in the trailer jive pretty perfectly with that second phase of planetary development.
I personally don't expect earth likes or fauna of any kind. My expectation is barren atmospheric planets. But I do hope for water planets, or lava worlds tough.