Prediction: The treasure Vriska found is going to attract Lord English. Well, okay, this idea is based on how together Lord English is, and he seems kiiiiind of like a mindless killing machine a lot of the time. But. He does seem to be able to show up in significant places, like Hussie’s house, and he seems to have arranged it so ANOTHER Jack will arrive at LoFaF with his weapon/staff, so hunting down the ultimate weapon against him (maybe) is probably within his capabilities. Of course, the silly goose will then activate the weapon ability of it.

Which is…fuck, I don’t even have a guess. We know that it exploits the in-universe physical laws. Probably has something to do with granting LE the immortality that cherubs have during mating, but probably a lot more than that. 

Time to read some theories from other people, I guess.