User blog comment:Kogath/Monster Hunter X Discussion/@comment-2194133-20151109040353/@comment-26421638-20151109144216

^ Hum... In the 2nd Trailer, Was Shown Amatsu at the end and in this new trailer... The "hydra thing" Monster...

Maybe... Maybe... Amatsu As Offline Final Boss and "Hydra thing" as Online Final Boss?

Btw... As you said, Capcom Teased the new monster in a similar way of Dalamadur... The Other ones were a bit More Different (Gog in a Commercial and Dire M in the 3U intro? I don't remember)