One idea could be that the Autobots find themselves in Equestria due to a space - time rift. They team up with the ponies to fight a common enemy like a new breed of Decepticons who are after the magical energy in Equestria. The ponies could use their magic to help the Autobots repair and upgrade, while the Autobots offer their advanced technology to protect Equestria.
Starscream and Pinkie Pie could be an interesting combination. Starscream is always plotting and scheming, while Pinkie Pie is full of randomness and joy. Their interactions would be hilarious. Maybe Pinkie Pie's positive attitude could even start to change Starscream's devious ways, or at least drive him crazy with her unpredictable behavior.
Optimus Prime crashes on an alien planet during a battle. This planet is inhabited by shape - shifters. At first, they are wary of Optimus, but as they see his noble nature, they decide to help him repair his ship. In return, Optimus helps them defend their planet from an incoming invasion. He teaches them some of his combat strategies and they combine their shape - shifting abilities with his strength, creating a unique and powerful defense force.
Well, in a lot of these fanfictions, Soundwave often gets some really interesting character developments. Sometimes he's paired with characters from other universes in the crossover, which can lead to some unique storylines. For example, he might interact with characters who have very different moral compasses, creating a lot of conflict and drama.
One popular element is the combination of different Transformers universes. For example, bringing in characters from other Transformers series into the Transformers Prime setting. It allows for new storylines and interactions.
One idea could be that Danny's ghost powers somehow interact with the Cybertronian technology in the Transformers Prime universe. Maybe his ectoplasmic energy can power up or disrupt certain Cybertronian devices. For example, he could accidentally short - circuit a Decepticon weapon while trying to use his powers to protect a human from an attack.
It's also about the fans' love for the Transformers Prime universe in general. By adding a crossover element with Soundwave, it's like adding a new flavor to an already beloved franchise. The chance to see Soundwave interact with characters he would never meet in the original series is really appealing to many fans. It can create some really unexpected and exciting story arcs.
Well, 'Transformers Prime: The Crossover Adventure' is also worth checking out. This fanfiction takes the Transformers Prime crew on a journey across different universes. It has some really unique crossovers with other science - fiction elements. The interactions between the Transformers Prime characters and those from other universes are very well - written. It's full of surprises and keeps you on the edge of your seat throughout.
You can start by thinking of an interesting setting for the crossover. For example, you could place Optimus Prime in a medieval fantasy world. Then, consider how he would react to this new environment. Maybe he's confused at first but quickly adapts. Another way is to start with a conflict that involves both Optimus and the elements from the other side of the crossover. Like, a powerful villain from the crossover world is threatening Cybertron.
Perhaps there is a portal that connects Cybertron and Equestria. Some ponies accidentally end up on Cybertron and are shocked by the mechanical world. The Transformers have to help them get back home. Meanwhile, some Autobots are curious about the ponies' world and decide to accompany them. This leads to a cultural exchange of sorts between the two groups, with lots of misunderstandings at first but then growing respect and friendship.