
ITV announced in February that sister show Moving Wallpaper had been recommissioned but doubts have remained over the soap.
Bosses said it would probably return in a "different format" after ratings dipped to a low of 1.9 million in February.
But Donovan, who played Dan Marrack, insisted that he remained optimistic about its future.
He is quoted as saying: "I do believe Echo Beach will come back in some shape or form. Watch this space.
"It was always an experiment. To be honest, what we did was distinctly groundbreaking. It was a very different show for ITV."
He added: "These things take a while - as any good drama would, or should - to bed in."
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