No because if you die on your Quest Bed you become your other self while if you die on a Sacrificial Slab you stay the same self so even in the scenario you suggest you’d still end up with one God Tier player.

Yes, it’s canon. In this flash you can talk to Aranea at the end and she’ll tell you. Kankri’s crush on Latula was canon as well.

No, no it’s not, it’s just a different tub.

The Beforus trolls were introduced in three flash games. 

None of the characters have been revealed to have middle names. 

No it is not. 

Their fate is unknown. 

Jade herself has stated that she doesn’t know which powers come from Bec. 

Sburb/sgrub is just a way for them to enter the Medium which is another dimension. So yes, if they die in game it can be permanent. 

No, Eridan never went grimdark. The panel where people say his skin looks darker than usual is because of the color contrast.