Board Thread:Spoilers!/@comment-27060727-20170803053127/@comment-25375217-20171025023746

I'm guessing we'll see Belle at 60ish with Gideon leaving home, then continue to see her up to 80 where she dies of old age. Gideon could appear again aged up, or maybe he'll travel to a different realm where time runs differently (again) and still be the same age when Belle has experienced 20 more years.

I really do hope Rumple and Belle go to the Dark Realm. The Wish Realm got mentioned again so it's not entirely outside of the realm of possibility. Plus, a day is roughly 28 years (probably exactly 30 years and Gideon came back just short of 24 hours later), so for Belle to go from 30 to 80 is less than two days in LWM time, meaning Rumple isn't gone for very long.