I could not find the proposal, perhaps a bit soon for it to show up on the vote list.
I do believe a 4 week time frame would be a grand Idea, I feel this would decrease the amount of stake held in one hand and make it a little more palatable when an investor invested and then decide it just was not for them.
Proposal should be right at the bottom, scroll down.
People can invest in Steem now using liquid Steem without ever having to stake.
AND they can also rent Steem Power just to test things out if they want to see if its for them or not.
I personally think this should be more well thought out and I think @therealwolf's suggestion of dynamic staking is better than a 4 week power down.