I don't believe future is fixed.
Even Quran when it talks about it was written bani-Israel would do corruption in the earth twice, it was the promise if they failed to uphold the covenant, and when they did, what was written was destined to happen.
In the same tone and same flow, the Quran says it is written that all cities will be destroyed or punished a great punishing before the day of rising, this also is a conditional promise, if people keep going with the attitude of disbelief.
If people believe and change what is in themselves, just like the punishment promised by Yonus was averted, the same is true of this punishment in Quran promised to all the cities in the world.
Let us hope we spark sincerity in humans, and fear of God, that they obey the last of those who are vested with authority from humans.
Aisha fate was not written. In Suratal Tahreem, we can see God trying to win her over and not be like the wife of Nuh or wife of Lut, and to be like Asiya who abandoned the Pharaoh despite her closeness to him (serious hints of who Abu Baker and Umar were), and similarly, believers are emphasized to try to save their families from the hellfire.
It was never destined that Adam eats from the tree, but a plan is always written, in case the worse happens. In fact, it was highly unexpected by all beings, and God expected Adam to obey (of course he knew the small chance of disobedience, but it was highly unlikely)....Iblis lucked out, to say the least.
Don't look at the problems of the world and think it was destined. Messengers were sent so people rise up for justice and that people obey the Messengers who are a way to God who guide by the truth and by it they establish justice, split into ways themselves, each is a way and all together they are the way.
It was meant to be prepared for Mohammad, but people treated the Messengers badly. Still God sent Mohammad only as a mercy, but the wrath outcome might come about, although it is not the purpose.
Similary a threat like that of Thamood's destruction was even given to his people but it was averted from them.
Hussain was expected to be victorious at one point, and this hindsight 20/20 that people did the unexpected and betrayed him and make it all fufilled prophecy, is to blind us to the fact we humans are here to determine our fate.
There are two outcomes, either we gratefully recognize God's favor through his chosen ones and holy books, and particularly love the family of Mohammad thereby accepting his favor in the past before them to the present and to the future, or we be ungrateful and rebel, by which we only rebel against ourselves.
Everything in the Sunnah is in Quran, in some form, but we have to reflect. Don't look upon anyone but those who are appointed to guide us through it to the destiny we always meant to be on.
As long as we look and go thirsty to springs that are mixed with impurity and knowledge with ignorance, and truth with falsehood, we will miss out on the most essential things of life, and be forbidden it by people who take a false mantle of authority and leadership...."it is written whoever takes him/her as an authority, he/she will guide them to the punishment of the burning..."