It’s going to be a while until we get an answer to that question, but fans should most probably prepare for a dramatic, eventful season 5 which will bring a lot to the table. It’s obvious now that we can expect many aspects of the plot to change, including ones related to major characters, so the new developments in season 5 could be quite serious.
We don’t really have any idea what’s planned for the next episodes of the show though, but judging by the way it’s been handled so far, we can only expect that the writers have prepared something truly spectacular for the next season. It’s a show with a huge potential, that’s for sure – and its writers certainly have the right idea when it comes to realizing it.
Hopefully, there won’t be any more dramatic unexpected deaths, because many fans seemed to take this development in a pretty negative way. The writers accomplished their goal of making fans feel uneasy and shaking them up, but they might have been a bit too successful in the end, judging by online discussions.