we covered this....Dandelion did something stupid and is now tied up and gaged so he can't speak and Geralt is taking the gag of and is saving himI don't know if this has been discussed yet, but I think the one with Dandelion in the trailer is Geralt, based on the armor and gloves he's wearing.
Maybe Dandelion made something stupid, he seems pretty regretful in the trailer.
Glove in trailer
Armor in trailer
Geralt screenshot for comparison, you can see the spikes in the knuckles and the soft padding at the end of the glove.