User blog comment:Noobla/Theory/@comment-24467372-20140729221620

Tartarus has no members left besides two scrubs,Kyouka and Mard. E.N.D is there,but he is the final villain.

Not all members are active in the fight. Laxus,Gildarts and Makarov aren't even fighting(Not counting Tempesta since he came back)

Only Sting and Rogue are fighting..Minerva seems out of the fight for now...

So you have a FT that is missing it's Top 3 from the battle and two members of Sabertooth...

I don't think Jellal and CS will participate in the fight. Maybe he'll help destroying the faces,but even that's a maybe...

I'll tell you what'll happen. Natsu and Gajeel will defeat Tora and Tempesta. Sting and Rogue will PoF the crap outta Mard and E.N.D will be brought down by team effort(All of Team Natsu or just Gray/Natsu or Lumen Histoire/Igneel(maybe)

So as far as being a threat is concerned,Grimoire Heart is a much bigger threat.....They took down Makarov,Gildarts actually fought someone,Laxus did too.... And it was a team effort to take down the leader.

If Mard stomps the shit out of Rogue/Sting just like a decent villain should,then yes....And maybe if Kyouka can overwhelm Erza enough to have Minerva help....Then maybe Tartaros could be viewed