User blog comment:StagedDom19/Missing the Main Problem/@comment-5008642-20120712005513/@comment-24174486-20120713193633

"If Wreav is the leader of the Krogan, it never tells you what he'll do after the events of ME3"

The wiki's page on Urdnot Wreav: http://masseffect.wikia.com/wiki/Urdnot_Wreav The wiki's page on the ME3 epilogue: http://masseffect.wikia.com/wiki/Storyline_III#Epilogue_2

It's made pretty clear that Wreav's long-term aspirations are vastly different than Wrex's. The fact that Wreav has to be leader in order to convince Mordin/Padok that curing the genophage is a bad idea says a lot about that.