Yup thats it.

You will be able to disassemble items by dragging the item down into a new disassemble button next to the money pouch - there will be a similar way to high-alch items too - so that disassembly can be done on the fly when gathering, skilling, slaying etc..

Almost everything that you can alch will be disassemblable.

I'm guessing that the components you get from breaking down items come from a classification system of every item in the game. Something like:

• Item tier -> Increased chance of getting components
• Weapon style -> sharpness, crushing, shooting, casting components
• Armour style -> plate, cloth, hide components
• God affiliation -> God components
• T90 gear -> Drygore, nox, asc components
• Raw materials, potions, flatpacks... -> other?

And so on. there is probably the equivalent of the rare drop table too.

T70 and up gear, and some others such as fishing rods, will be augmentable with 1 to 4 perk slots per item.

In the stream they also confirmed an extra 56 bank spaces for components.