Ezra and Sabine sent to DC or marvel universe 

Ezra and Sabine stuck on a uninhabited planet due to a battle (season 1time frame) till the ghost crew eventually arrives and both of them didn't like each other till after the Vader incident.

Ezra and Sabine leaving the rebellion to form their own rebellion 

Ursa adopts Ezra on a vist to lothal 

The ghost crew went to the old republic era 

I'll post more but these are ideas I don't have time to formulate.

Anyone who wants to use them just mention me in your story and I'll read it and vote on it plz thanks