This question has been already asked regarding Season 3, but if I recall correclty, Riot stated something in the lines of "You can drop tiers in Season 4". So I want to know if this is the case, now that Season 4 has started..?
edit: Since some people obviously don't know that there is a difference between Season 3 (before December 2013) and Season 4 (from Mid January 2014), I want to state this clearly again: I am asking about dropping tiers in Season 4. This is not a duplicate to the same question here, since it was asked by the time of Season 3, which means through patches the system can be (and has) changed. So either the other question question (as well as the answers) has to be updated, or this question is just plain and simple not a duplicate.