No, they’re Purple bloods. Indigo is the Zahhak’s blood caste.

Rose’s quest was to play the rain and revive life in her ocean. Jade’s quest tied into the frog breeding she had to do. Dave’s quest had something to do with brining the Royal Derringer to Hephaestus but it was never explained in detail.

Because it became kinda irrelevant 

Not exactly! Blood castes like Jade, Teal, Indigo, Olive, Violet, and Fuchsia (with exception of the Condesce) aren’t mentioned to develop any sort of psychic powers.

We know that Meenah uses her 2x3dent and Cronus used to use a wand but now uses Ahab’s Crosshairs. Near Meulin you can find claws similar to Nepeta’s. Damara uses double wands. I don’t think the other trolls have mentioned their strife approach.

Oh yes! I apologize for that. Horuss is a Page of Void.

In the comic it’s stated that once a lusus has chosen a grub they’re sent out of the caves and they build a hive with the carpenter drones help. But nothing we’ve read has suggested that they couldn’t just choose an abandoned hive like you said.

We haven’t met any Knight of Hearts in canon and the only Page of Void we’ve met is the theorized inverted Page of Void (Vriska). We don’t really answer classpect questions on this blog so you should probably ask some classpect discussion blogs this question. Edit: I apologize I forgot that Horuss is also a Page of Void.

Not necessarily! It’s more akin to finding your close friend passed out drunk and depressed, not post-coitus.

The timeline that births a new universe is the alpha. The doomed timelines exist to piece together the alpha timeline in some way or another. For example the timeline that Davesprite came from was doomed but in the end it was always meant to happen because he came back and became Davesprite. Another example is all the doomed timelines the trolls had which were all doomed but in the end were necessary because they needed all the Aradiabots to help them defeat the BK.