I’ve kinda been leaning toward a similar idea of totems being a new mechanic in place of pets, something between what exists with Scourge Shades and Ventari Tablet. Although in my view of it it would replace the pets instead of acting alongside them. Something such as you have two totems you can summon that are either:
1) Invulnerable, but on a timer like Shades
2) Indefinite, but have health pools such as we have with Ranger pets.
I guess the play style behind them would be again like Shades or Ventari where you have some moveable AoE presence that emanates from the totem (Damage, CC, Condi’s, Healing, Cleansing, etc...) which for my personal goal would be to allow Rangers to have presence and a role within WvW zergs. Maybe something in the supportive side that is not necessarily something that Druid already covers? Or maybe an AoE debuff/condi focused role, although I’m worried that it might overlap too heavily with Scourge.
The totems can be based off either the specific pet (brown bear, black bear, etc...) or the pet family (Bear, Avian, Canine, etc...). The groundwork for ideas for totem skills can be inspired by what we have with Soulbeast abilities where they have abilities specific to its family (Canine Leap and Bite, Bear Invuln and Bite, etc...) or on an Anet defined role (Power damage, Condi damage, Healing, etc...).
Just looking at the past ideas for Ranger elite mechanics, we have
1) Ranger, two pets we swap between
2) Druid, shift focus from pets to a new form (Celestial Avatar)
3) Soulbeast, focus on one pet with merge and un-merge with.
From what I can see, the two most obvious ideas left would be:
1) Two pets at once, maybe slightly weaker but still a net gain, or can’t interact with the secondary pet, etc
2) Have something based on a companion / pet that is not how it is currently (this example being summonable totems
Regardless, I think it’s a really interesting idea and exists in a space that may not necessarily already be filled by the currently existing roles.