I didn't catch the stream today, but this is copied from a post over at Bungie.net forums about the stream.
" Necrochasm confirmed to be returning, new Ornament seen in "Treasure of Ages" Silver Package. -
Ninja Nirvana
> New Ornament for Suros, Dragon's Breath, Touch of Malice, Vex Mythoclast and NLB.
• No more Vault Space. ()
• Age of Triumph will begin with talking to the Speaker to start a quest. (lol no shit)
• New
"Weekly Story Playlist"
> This is a quest that will take you through all of the content they've created thus far.
• New Silver Crate "Treasure of Ages" that gives all prior Silver-exclusive gear sets, emblems and emotes inside of it. In addition, some extra ornaments were seen and 2 ships if I'm not mistaken. New suit of Age of Triumph armor with 3 new shaders seen as well.
• ALL ornaments and MANY other things added to the Silver Dust kiosk, as to prevent repetitive rewards. SRL Sparrows and Shaders. Masks, Emotes and Lenses.
• Shaxx now offers two Weekly Crucible bounties and a purchaseable "Crucible Engram"
• Challenge of Elders has been confirmed as a returning activity, Skolas has not.
• Nightfalls now have the "Daybreak" modifier, taking in all of the "Epic" modifiers, while increasing all recharging abilities.
• "Daybreak" has been confirmed to be essentially Mayhem for PvE.
• Heroics now give (1) Treasure of Ages instead of the current Box thing.
• Weekly Story Playlist is a new playlist that involves all the story missions in Destiny, remarkably similar to the short-lived Queen's Wrath event very early in Destiny.
• You can now get upwards of 3 Free Silver Crates a week from the activities in the left hand corner.
• We got to see a Daybreak version of the Sunless Cell strike. They did indeed hipfire a Pulse Rifle multiple times.
• Daybreak Strikes seem to be relatively simple, just a Mayhem version of the current Strikes with a little bit more difficult enemies.
• Rainbow Burn has returned!
• Through the month of August, it will be all Daybreak Nightfalls.
• The Blue satisfaction Flame from Nightfall Completion has returned!
• Twilight Garrison may or may not be affected by Shaders now.
• ENGRAMS ARE NOW PURCHASEABLE WITH SILVER DUST.
(Not entirely sure if they give Marks or Light Leveled gear, but FWC, Crucible and presumably all other factions have a purchasable engrams for 5 Silver Dust.)
"
https://www.bungie.net/en/Forums/Post/223323787?sort=0&page=0