Do you (and everyone else in the thread) think that it'll always be a cycle of different faiths replacing each other or there'll be a point when a majority of population picks up atheism?
People will always have beliefs.
Shinto or the ancient European religions, for example, are very different from the monotheistic ones.
They aren't as dogmatic and psychotic at their foundations.
And they are far superior in their morals to Abrahamism. Most of them have a racial component tying a people to a land and its history, which is a good thing. If you hold the view that the land you live on and its people have spiritual value, you will take better care of it.
Japan still has many of its Shinto traditions, especially outside of Tokyo, and the view that land is spiritually important is fairly obvious in how it looks.
If you read ancient European stories, you can clearly see everything that is considered good in the West already there. If you look at pre-Christian laws, you can already see the values of the modern-day West reflected.
There are many interesting theories about how Judaism really started, which in turn created first Christianity followed by Islam, arguably the worst religions. My favorite theory is that it was a cult started by rich merchants to protect their wealth within the Temple.
The entire "history" found in the Old Testament is provably made-up nonsense, with some of it being plagiarized from earlier religions and other parts made up whole cloth.
Hebrews were just regular Arabs who started to follow a new religion and adopted a new identity somewhere between 1000 - 500 BC.
And it's a fascinating ideology; most other religions have the view of their followers being great and their land being great, but Judaism is built on the idea of the other being evil and nature being evil and only Hashem being a force of good.
The fable of Jacob and Esau is the defining meme for Jewish identity, and you can find it festering even in Jews who claim to be atheists.
It brainwashes its followers into believing that anyone outside their cult is created with envy, hate, and deceit in their soul.
It's fairly obvious that with this belief, you are always morally justified to do anything to the outgroup since they are ontologically evil and are always plotting to exterminate the ingroup.
This is why Hadrian had to put an end to their insane Temple cult.
A bunch of Jews went to Greece and coped with their defeat by inventing Christianity, a power fantasy of Hashem conquering Rome spiritually. Some went into exile in Arab countries and invented Islam as another cope of Hashem conquering the world.
Both have the same anti-nature, anti-human rotten core as Judaism.
I don't know that much about Buddhism, but I assume it has a rotten core because it eradicated many local spiritual traditions.
I hope these monotheistic religions go away, especially Abrahamism, since it's foundationally anti-nature and anti-human.
Atheism is a vague term because religion and god are extremely broad terms.
Most atheists delude themselves into believing they have come to a worldview based on reality.
The reality is they didn't achieve more enlightened metaphysical views; they simply realized that those of dominant religions are bad.
There is nothing you can know for sure outside of your own existence, so metaphysical frameworks are a necessity to being a functioning, thinking human.
For example, about 70% of Americans consider themselves religious, what do you consider more likely to happen at some point - 70% of Americans will switch to Voodooism or something like that or 70% of Americans will be atheists?
I think I am a dementoid, and most normal people will always adopt premade metaphysical frameworks. Most don't want to learn the ideas of Plato, Pythagoras, Schopenhauer, Nietzsche, etc. They don't care about the "why"; they just want to live their lives.
Also, if you think the future is mostly/predominantly atheist (I mean both individual countries and the world as a whole), how will it be achieved?
I don't. Atheism is an opposition movement, so just like conservatism, it will never win against movements that have a vision for the future.
A good chunk of populace will decide they don't feel like being religious (like how atheism has grown in the West) or it will be forced from the top at a gun point (a-la USSR, Socialist Block, China, Anarchist Catalonia)?
As stated above, atheism doesn't have any teeth. Communism, on the other hand, has a vision for the future, so it has the force to destroy competing ideologies. In my opinion, communism is just another perverse ideology that grew out of the Abrahamic framework.