The live streamed version of this afternoon's Da Vinci's Demons Comic Con Portugal panel can be watched online. As it is the version which was streamed, there was a delay starting the panel, and the video doesn't include the season 3 trailer shown to fans in Portugal only.
Hopefully FOX Portugal will share a high quality, longer video - but sadly, it doesn't look like fans, who just can't get to cons, will see the Da Vinci's Demons season 3 trailer any time soon.