I just realized something (took me so long), but the talk-no-jutsu chapters in the sacred palace (volume 34-35) are similar to the infamous episode 25&26 of the Evangelion TV series. I think they both have similar themes (e.g: 'the world sucks!' 'no, it doesn't!', 'we believe in you', 'we love you', 'take care of yourself'...etc. In the case of Eva, there was the End of Evangelion to follow, and the Rebuild movies are a nice AU alternative if you want a more positive aftermath to the events of the TV series.
I'm one of those people who doesn't mind Ohtaka returning to Magi after some years and writing a short sequel or an AU. Aladdin talked about there being other worlds during the summit, like one in which Aladdin is Kou's magi and Judar is Sindria's.
In my poorly-written Magi sequel fan fiction, the MVs are gone, but the story returns to its 1001 Nights roots. Aladdin goes on a journey by himself, meets Badroulbadour (Jasmine in the original tale), who is the princess of a small kingdom, and becomes entangled in the palace intrigue. He solves the kingdom's problems and beats the bad guys with magic and the experience he gained from hanging with the leaders of the world.
Before the final arc, I thought the manga won't end before Ohtaka incorporating the story of Aladdin from 100 Nights and Aladdin meeting his future wife, just like his father wished for him in a tegaki.