User blog comment:Kogath/Monster Hunter X Discussion/@comment-6974847-20150608130036/@comment-26421638-20150610151129

Well, it's true... Lagiacrus without Underwater is not a Lagiacrus... It would be like a Rathalos that cannot fly... Would be awful...

The problem is: probably in this MHX there is not Underwater (we aren't sure for this, but if Underwater come back, Capcom should already demonstrate it on the trailer). At the same time would be nice if Lagiacrus come back... That Leviathan was a Flagship Monster... Would be a shame if in MHX are present all Flagship Monsters except Lagia, if Narga returns in this game...

Anyway those are simply theories... And sorry if I cannot explain better...