Ruststorm (by any name) would be good for Artificer Warforged, I can see that being quite flavorful on some items and we already have several mixed spellcasting items.
Agree on Trap the Soul, was going back over Shadowdancer and the fourth Core has great synergy for it, but it only exists on the Feywild Runearm currently. We already have Phantasmal as an augment, so any chance we could get Trap the Soul as well on Red / Purple? All of the non-caster Shadowdancers would thank you
Most of the the other effects you listed are from Raid items, so doubt they will be added to random loot tables.
I'm seeing a trend where most of the effects would be great as augments so that we don't have to do more gear Tetris to fit an entire item in for a single effect. Maybe this is something to keep in mind going forwards, WE LIKE GEAR FLEXIBILITY! While I understand that having a complete set of augments for every effect in the game may not be something the developers want to do, it's the easiest way for players to be able to finish out gear sets and so they will always be in demand.
While I'm here, may as well add my usual request for an infinite Thieves Tool item, pure QoL so I can sell off the stacks I acquire every life. I put in a suggestion of making this a raid reward that upgrades from +1 (Master Crafted) to +6 (same bonus as +5 Thieves Tool) a few times now...
Also, can we get more potion style clicky's rather than equip items? These are much faster to use rather than swapping weapons and armour back and forth. Restore charge on rest with easy access might make me more inclined to bother using them at low levels.
Lastly, can we get the festival enchantments back? The 10 fire and cold resist makes great starter gear but is mostly irrelevant at higher levels, especially with the way it interacts with Absorb (it really should apply Absorb before Resist IMHO to make both stats desirable). The Festi Frost kits made a reason for people to grind the event back in the day. Can this and Festi Solar be opened up to any weapons (mutually exclusive if needed) so that they are relevant? The named loot makes lootgen worthless so no point using Festi Solar on anything since even starter weapons are either named or Cannith Crafted.