Twists and Turns of Fate

"And just like that, Emma was gone. His love, his light, his everything... Gone, before his very eyes. This heartbreak, Killian knew he would never get over. His happy ending was gone, forever. But that didn't mean he was going to give up."

My speculation for the season 4 finale of Once Upon a Time. When Emma is left with a heavy choice: keep her happy ending or give everyone else their's, she does what's best. But what toll will that have on her family? On Killian? Can they really have their happy endings without her?
Rumple has lost the powers of the Dark One but even so, Belle isn't sure she can forgive him. What will become of Belle and Will's budding romance?
Regina and Robin have been reunited, but their relationship has become strained yet again. And nothing can be done this time.

How will the residents of Storybrooke cope with losing their saviour? Where is Emma and will she ever be reunited with her family?