User blog comment:Ahomeschoolingroudon/Season 5 Early Hints/@comment-25656629-20160305115940/@comment-25968390-20160305124349

Well I'm unsure if this is done already but...

Oh, wait... You answered it for us. Crap. Would've been more interesting if your fans actually guessed it. No offense though.

Anyways...

Mother Brain?

Jedah vs Mother Brain? She starts as an equivalent of a core, then becomes a monster, the last Metroid sacs itself, and is a potential reason why in Metroid Fusion, we have SA-X (There are no more Metroids beyond this point...); and the food chain has fucked up. Worst of all, it was Samus' fault. All right, enough Metroid lore, what's the verdict?