Becky (Katherine Kelly) first met Danny in early December, when she approached the hotel manager over a possible contract with cab firm Streetcars. Viewers will see the pair grow much closer in upcoming episodes.
However, just as their romance is developing, Danny will be left with a big decision to make when he lands a work transfer to Barbados.
Sheffield told Soaplife: "It's a fantastic opportunity, but bad timing. He's devastated because he saw Becky as a chance of happiness, of the sort that doesn't come along very often. But he decides to go."
"He's thinking about asking her to go with him," the actor continued. "It's quick, but if you have that chemistry and it's such a special thing, you don't want to just let it go because it's not a regular relationship - it's something much more. For Danny, it could be a risk worth taking."
Sheffield also confirmed that Danny could play a part in helping to clear Becky's name after Tracy Barlow (Kate Ford) falsely accused her of causing her miscarriage.
"Danny spots Tracy and he remembers how she collapsed and was carted off in an ambulance," he said. "Becky wonders if this might help her to prove she wasn't responsible for Tracy's miscarriage."
Coronation Street continues tonight at 8.30pm on ITV1.
Read more about the build-up to Becky's Coronation Street exit:-
> Coronation Street's Kate Ford chats to Digital Spy about Tracy's lies
> Coronation Street Becky must clear her name, says Katherine Kelly
> Coronation Street: Could Gail get revenge against Tracy?
> Coronation Street: Another wedding twist revealed?
> Katherine Kelly makes Coronation Street exit
> Coronation Street star Katherine Kelly unveils new look
> Read more Coronation Street spoilers and news
Watch a preview of Friday night's Coronation Street double bill in the video below: