What do you guys think about "Cold Staking" (
https://bitcointalk.org/index.php?topic=1820650 )?
As far as I understand it, it acts similarily to multisig but for staking; you'd need two keys to move your staking coins, adding a layer of security.
That is actually the one item that prevents us from saying we are truly PoS 3.0, Not sure how I feel about it, I guess I need more information.