The show's boss confirmed that many of the more dramatic moments in store will centre around a new surf gang called the River Boys, who cause a stir as they make their presence known in Summer Bay.
Speaking to TV Week about this year's plots, Welsh explained: "There are lots of big storylines coming up - probably more action than we saw last year, mostly brought about by the introduction of the River Boys."
He continued: "Angelo will face a challenge to his business with the arrival of the River Boys. Angelo and the River Boys will definitely butt heads, but he's not the only resident to be thrown by their arrival.
"These boys are going to shake up the Bay like we've never seen before. And yes, some confrontations will get physical."
However, Welsh added that his main aim is to "continue to explore characters' relationships" in the months ahead.
He said: "Not just romances, but relationships between friends, brothers and sisters, fathers and sons, and so on. Some of these relationships will be severely tested and others will be strengthened."