While I don't have any concrete suggestions for the sequel, the obvious aspects will be Severus Snape working to actively thwart attempts by both Riddle and Dumbledore to use Harry in their schemes and machinations; that should be challenging enough, especially if done in such a way that the Death Nibblers in Slytherin don't catch what he's doing and tattle to "Daddy". This was an interesting wrap-up and I look forward to seeing how the sequel unfolds. -chuckle- It would be amusing if, based on what he did right and wrong with Lily, Severus was able to help Harry better relate to Hermione.