One of the many reasons behind Skyrim's immense popularity is that it allows you to play as a character of any alignment you want. Your skillset, armour, and weapons will help play as any of these alignments, but isn't only related to your build, with it also shaped by the decisions you make in the game.
Chaotic good players are more likely to play as Stealth Archers. A lawful good player will slay Paarthurnax when the time comes, and in some rare cases, a true neutral player will just stand there among the burning ruins of Helgen as Alduin smashes the city to bits. Then there's the chaotic evil player, who will probably murder all the chickens in Whiterun, followed by the guards, smash Jarl Balgruuf's head in, and laugh maniacally on his throne.
However, a chaotic evil player needs a chaotic evil weapon, and so, the chaotic evil department at Bethesda created the Wabbajack. A Daedric artifact of Sheogorath that fires spells at random - spells that could work for you or against you. It’s the ideal weapon to wield if you want to prance around Skyrim causing pandemonium. Even Alduin wouldn't want to mess with something like that.
The beauty of this weapon is that you'll use it only when you're in a certain mood – like if you're tired of following map-spanning quests and just want to cause some chaos. Sure, you could use it to clear out a stronghold too, but there are few things more satisfying than saving the game, whipping out the Wabbajack and randomly throwing out spells at whatever poor settlement happens to be closest to you.
Bethesda has mentioned that the upcoming Starfield is more than just Skyrim in Space – 1,000 planets and all that. However, it needs to honour the Wabbajack by somehow incorporating it. While Starfield is a game about space exploration, the trailers have revealed some sort of space-magic artifacts, along with a cliffhanger of the player using some sort of gravity distortion power. While we don't know anything about it yet, it gives us an avenue to introduce the Wabbajack - or whatever its space substitute is.
Turning a guy into a fountain of sweet rolls fits in with Skyrim's fantastical setting, but the formula may need to be adapted to suit the "NASA-p🧔unk" direction of Starfield. Maybe one of the effects could teleport in a space troll to fight on your side; another could be to make all of your enemy's weapons go off together, making them a walking turret or bomb – I don't know, I'm not a developer.
But the important thing is that Starfield should feature some version of what is arguably one of the most fun video game weapons ever created. With the length and breadth of a game like Starfield, as with Skyrim, players are prone to get a bit tired of all the running around, and may just want to let loose. That's where the magic of a weapon like the Wabbajack makes everything all the more satisfying.
Zapping fools with it gives you a sense of breaking free from the same old ‘go to the place, kill the guy, retrieve the thing’ formula. Sometimes, you don't want to travel all the way to planet Whoevencares, and just want to mess around and find out. The Wabbajack is the perfect weapon to accompany you on these excursions, and it would be a pity if it didn't make an appearance in Starfield in some form.