Aura manipulation is next to nonexistent in TC6. The totems from TC2 and TC5 could be a good addition. I know that Thaumic Additions adds these, but the other content is less than ideal. I also think that the implementation could be better.

Totem of Dawn is unlocked about midgame. It is a totem that attracts vis to the chunk, but could overflow it causing flux. Ideal when used with vis batteries.

Totem of Dusk is unlocked closer to endgame maybe when you're about to unlock the flux condenser. It does the same as the Totem of Dawn but for flux. Ideal when creating rifts or making a dedicated flux cleaning area.

Both of these should be pretty expensive and spamming them should be ineffective; the more totems there are, the lesser the effect of a single totem. The totems only amplify eachother if they are stacked up to a certain point, maybe 4-6 blocks. This intensives to to build them like totems instead of floors and ceilings. Putting both totems in the same chunk would either cancel eachother out or do something more interesting :P

Upgrades to these totems could be implemented, but I don't think it would be necessary.

Assets can be taken from TC2

I think adding a decorative totem would be cool too maybe as a structure scattered all over the emptiness. One thing I missed from older Thaumcraft versions is having some sort of eerie totem to decorate with.

I loved the obsidian totems from thaumcraft 4 and 5 for decoration purposes. The totems of dusk and dawn, I can take them or leave them. FYI they are features in a different TC6 addon.