What's the ilvl gear loot on Heroic raid difficulty in patch 10.1?

Gearing in general in patch 10.1 has got a system change. Here is a video that explains that.

When it comes to gear item level from the new raid Aberrus, the Shadowed Crucible the different difficulties will reward different gear ilvl.

Here are the boss specific ilvl rewards.

Here are the gear ilvl you get from raids and what type of gear you get from the raids. Based on type of gear, you can upgrade them to a certain ilvl.

The drop is Crest Fragments and you need 15 fragments to make it into a Crest. The Crest Fragments are 100% drop.

Raid Finder 402 - 411 ilvl
You get Veteran Gear
You need Whelpling Crest for the first 4 upgrades.
You need Drake Crest for the last 4 upgrades.
Raid Finder will drop Whelpling’s Shadowflame Crest Fragments. Most bosses will drop 10 fragments, but end bosses will drop 15

Normal 415 - 424 ilvl
You get Champion Gear
You need Drake Crest for the first 4 upgrades.
You need Wyrm Crest for the last 4 upgrades.
Normal Aberrus will drop Drake’s Shadowflame Crest Fragments. Most bosses will drop 10 fragments, but end bosses will drop 15.

Heroic 428 - 437 ilvl
You get Hero Gear
You need Wyrm Crest for the first 4 upgrades.
You need Aspect Crest for the last upgrade.
Heroic Aberrus will drop Drake’s Shadowflame Crest Fragments. Most bosses will drop 10 fragments, but end bosses will drop 15.

Mythic 441 -450 ilvl
You get Mythic Gear (No upgrade)
Mythic Aberrus will drop Drake’s Shadowflame Crest Fragments. Most bosses will drop 10 fragments, but end bosses will drop 15.

Here are the boss specific ilvl rewards:

Boss	Raid Finder ilvl loot (Veteran)	Normal ilvl loot (Champion)	Heroic ilvl loot (Hero)	Mythic ilvl loot
Kazzara the Hellforged	402	415	428	441
The Amalgamation Chamber	402	415	428	441
Assault on the Zaqali	402	415	428	441
The Forgotten Experiments	405	418	431	444
Rashok	405	418	431	444
Zskarn	408	421	434	447
Magmorax	408	421	434	447
Echo of Neltharion	411	424	437	450
Scalecommander Sarkareth	411	424	437	450

There are bosses that can drop a rare gear with higher ilvl.

Trinket: Screaming Black Dragonscale from following bosses and ilvl reward:

Kazzara the Hellforged	408	421	434	447
The Amalgamation Chamber	408	421	434	447
Assault on the Zaqali	408	421	434	447

Two-hand Polearm: Djaruun, Pillar of the Elder Flame from following bosses and ilvl reward:

The Forgotten Experiments	411	424	437	450
Rashok	411	424	437	450
Zskarn	411	424	437	450

Trinkets: Neltharion's Call to Chaos, Neltharion's Call to Dominance, Neltharion's Call to Suffering from following bosses and ilvl reward:

Magmorax	418	431	444	457
Echo of Neltharion	418	431	444	457

Back: Voice of the Silent Star from following boss:

Scalecommander Sarkareth

418

431

444

457

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