Apparently this was what the text said in the trailer
Text: The old enemy wished for by Dragonball fans.
Narrator: The latest footage from next year’s Dragon Ball Z: Fukkatsu no F film has arrived.
Piccolo: He became a monster from another dimension and came back!
Vegeta: What is going on!?
Goku: Frieza!!
Frieza: Let me show you… My next evolution!
Narrator: Akira Toriyama, who is writing the scripts, brought back Goku’s old enemy Frieza. Frieza is very popular among fans, and the film will be filled with so many action scenes that Akira Toriyama has called them “fierce.”
Text: Akira Toriyama – “Look forward to a fierce face-off.”