... only to find that we're not alone

Before, they were waiting somewhere in the heavens. Now it appears they're down here on Earth, with us.

A Hunter in the foreground conceals themselves against a dark patrol of Fallen and Cabal.

That sniper rifle looks familiar, no?

Meanwhile, on Pandora, the Vault Hunters find an old Russian space shuttle.

Just kidding.

... and now we've begun to venture back into the wild...

Human technology certainly seems to be more primitive here than in Halo, probably not due only to the unknown cause of destruction, but just a generally earlier level of development, hence the lack of FTL.

...but slowly we joined together to build a city beneath the Traveler.

Bits appear to either be falling off the Traveler, or perhaps have been removed by humanity for expansion and construction of the Last City. Either that, or what we are seeing here is battle damage from the ancient conflict. Some pieces appear suspended above the earth without visible means of support.

The years that followed the collapse of the Golden Age were hard...

The pictured building appears to be a station of some kind, with its signage still partially visible.

The last four letters before "Station" may be "THIS" forming the end of a longer word, or perhaps "INIS"

The mysterious sphere still hangs where it made its last stand... low above the Earth, keeping silent watch.

Legends say the Traveler sacrificed itself to save us.

This quote is another indication that the war that has brought humanity low happened far enough in the past that the details of the conflict are not fully known.

Also, Internet Spaceships are serious business.

Here we see a screen very familiar to Halo players-- a gameplay screen overlaid with a party list. Three out of a possible six players are in the party, which is joinable. Level 6 Halcylon and level 12 Deej will be sure to blame level 16 Stoshy for anything that goes wrong. The higher level Stoshy, we assume, is the one with the more impressive and cleaner-looking spaceship in the middle.

To the left is what appears to be a list of gameplay hoppers.

The first "The City" may be a safe area for trading, preparation and socialization. It's labeled "Home".

As one might expect, it appears we can make several characters and choose from among them. While it was also possible to have multiple player profiles in Halo, there was really very little reason to do so, except for the creation of multiple campaign save files in Halo 2 to make skull activation easier.

Destiny Update New missions and fresh rewards await in Destiny. Get in the game and help us take our worlds back from our enemies.

I assume our enemies are running Android.

Venus is awesome tonight! Meet u there? My body is ready!

"My body is ready"

Jason Jones invites you to Venus.

Before the notification appears, it is more easily noticed that the player character is female, and that the icon on the left is indeed some kind of weapon, while the icons on the right indicate armor; a helmet and what appears to be a chestplate are shown.

This appears to be a Destiny character profile for the player character "halcylon" being displayed on an iPhone emulator.

halcylon has 1790 of something-- perhaps a rank or accrued experience.

Across the bottom of the screen appear to be some RPG-like player attributes-- energy, shields, agility and discipline.