Ewing, who plays the River Boy troublemaker in the soap, promised that fans can expect to see a change in Heath.
"I think even the toughest guys in the Bay have a soft side. It's actually very interesting to watch it unfold and I love finding out why these guys have become who they are," he said.
"You will see more and more vulnerable aspects to the boys but don't worry, they won't lose the River Boy edge."
Ewing also hinted that "Heath gets very close to a certain lady".
The actor admitted that he has many similarities to his character, saying: "In many ways, yes I am like him - loving a party, the outdoors, staying in shape, [and] having a laugh but Heath engages in criminal activities that I certainly don't.
"I love the character so much. After all, the bad boys get to do the coolest stuff!"