His character Aaron Livesy's last scenes, reportedly taking place at an airport, are being kept under wraps by show bosses.
Speaking in an interview with Soaplife magazine, the star teased: "My exit storyline is amazing - I've read it all. The writers are sending Aaron off in a way that most people won't expect.
"If we get it right it's going to be heartbreaking for some people."
The 21-year-old, who has been with Emmerdale since 2008, finished his last day of filming on Friday.
The actor recently praised writers for Aaron's romance with rugby player Ed, to play out in the next fortnight.
Danny Miller's final episode as Aaron Livesy airs on April 5.
> Emmerdale fans celebrate Aaron Livesy's best moments