The latest NASA New Frontiers selection did not select any finalist proposals to Enceladus, which is one of the most promising targets for life in the solar system. It did however select Dragonfly, the Titan quadcopter.
What if a nano-probe were attached to Dragonfly, and deployed while entering Saturn orbit, flying by Titan but not touching it. Just as Cassini flew by Titan while Huygens landed, this nano-probe would continue onwards, with its ultimate target being Enceladus.
Would it be possible to get it to Enceladus from there? Given gravity assists and all, how much delta-v would you need to get to Enceladus post-deployment?