'Once Upon a Time' season 5 spoilers, plot news: Hades plots to take over Storybrooke, who dies in the finale?

The fifth season of fairy-tale drama "Once Upon a Time" is slowly inching towards the final episode, and someone will surely not be back after the finale. In the new promo from ABC, someone appears to have paid the ultimate price as Regina and Emma are seen mourning in someone's funeral.
As noted in the official synopsis for this week's episode titled "Last Rites," Emma, David, Regina, Robin and Henry finally come home to Storybrooke. Despite being reunited with Snow, they still have to deal with Hades as he continues to trick Zelena in his evil plan. His plot involves using an all-powerful Olympian Crystal to take over Storybrooke. In order to keep this from happening, the heroes will stop at nothing to stop Hades from executing his plan once and for all. Meanwhile, Hook will also do his part in defeating Hades by finding the missing pages of the storybook. An epic showdown is also bound to happen, and it will change their lives forever.
Ahead of the emotionally-charged episode, showrunners Adam Horowitz and Edward Kitsis gave teasers on what fans should expect from their beloved characters. Kitsis mentioned that Belle is still on a maternity leave, but Horowitz confirmed that she will play a pivotal part in the finale. "Belle does play a key role in what's happening in the finale, particularly with regards to Rumple, while still managing to be on maternity leave," he told Entertainment Weekly.
As for Snow White, her character will undergo development as the series progresses. "We're going to see some of Snow's growth from, as we've seen this season, Mary Margaret to really embracing that she is Snow White. Long past wounds, particularly with Regina, are dealt with in this finale," Horowitz stated.
Keep tuning in to the fifth season of "Once Upon a Time" which airs Sundays at 8 p.m. ET on ABC. The promo clip for this week's episode titled "Last Rites" can be viewed here.