My assumption at this point is that this is a hint that Whis and Beerus will factor into the conclusion of Dragon Ball Daima somehow, which would bridge the series to Super. That would be cool ...

Dragon Ball: Sparking Zero will feature characters like Beerus, Whis, Gohan, Videl ... of defense after the Androids killed the Dragon Team and devastated Earth. Gohan mentored Trunks and fought ...

You can also throw Ultra Instinct Goku, Beerus, Whis, and both Blue Gogeta and Blue ... Sure, he's strong, but as far as Team Battles are concerned, I don't think any 10 DP character is so strong ...