@TheKnightOfTheSea @Elder Lee Hung I saw you two discussing this so I'll tag you for my theory.
Gonna be a bit weird, but hear me out.
Behold, the final boss of the DLC:
At first, I thought this guy pulling a sword out of his head in a
cutscene was not too major, but then I realized something.
He is the same character as this painting guy they show in the trailer that they slowly zoom in on.
Same emblem on his cloak, and the same cloak.
This is important because
several important bosses in the base game were first shown in paintings.
What's more look at the object that is piercing through his head into his chest cavity. Does it look familiar?
That might be a great rune.
Now for more out-there speculation. Who is this character
exactly?
We know that part of this DLC is going to explore Marika's past and how she rose to godhood.
I think this character has some relation to Marika
before she became a god. Knowing GRRM's love for family drama, this may even be someone like Marika's father.
Another reason why I'm buying into this guy's stocks is that some old guy that we don't know about being the final boss unironically matches the them of a random slave knight being the final boss of DS3.
Three directly. One more indirectly.
1) The lion dance boss (obvious, also side note, this boss seems to homage both Sanctuary Guardian and Ludwig - big first from DLC boss energy).
2) Messmer (obvious).
3) Old guy in the painting pulling a sword out his head (see above).
4) We don't see a fourth, but in the shot where they show a tarnished doing martial arts/kung fu there is a massive gold fog door in the back (the area is clearly either a legacy dungeon or massive dungeon) and the locale does not match 1-3.
So at least 4 trophy bosses that we know of.
Also
@Elder Lee Hung can rest easy:
The fire giant thing looks more like a DLC version of caravans guarded by the giants than a boss. So he does not have to worry about fire giant 2.0 lol