Now that "Once Upon a Time" season 4 has finalized its cast for the "Frozen" arc, what will happen to Leo on "Chasing Life?"

As many fans know, Scott Michael Foster has been cast as Kristoff on "Once Upon a Time" season 4, and recently, TVLine addressed what could happen to his character on the ABC Family drama.

“We don’t want to [kill Leo]. But every character has its purpose on the show, said executive producer Patrick Sean Smith. “We’re finding so many new opportunities in his relationship with April that we hadn’t considered before.”

Reportedly, with "Once Upon a Time" and "Chasing Life" running on different production schedules, it's entirely possible for fans to see both Leo and Kristoff. But only time will tell.

Meanwhile, it's been confirmed that in addition to Anna, Elsa, and Kristoff, Hans and the Troll King Pabbie will also join "Once Upon a Time" season 4.

According to People, John Rhys-Davies ("Lord of the Rings") has been cast as Pabbie, while Tyler Jacob Moore ("Shameless") will play the devious Prince Hans from the Southern Isles.

During the 2014 San Diego Comic-Con, a new trailer hyping "Once Upon a Time" season 4 was also unveiled.

"This trailer was pathetic," commented Lock Shock Barrel on YouTube.

"They did it again! That was two minutes of recap and a big hype up for FROZEN," wrote Chasemebaby. "Why are you going to let that define the next season? How about Maleficent? Jafar? This appears to be a money grab to capitalize on the frozen crowd and edge out the regular viewers. I hope not. "