I am sorry bro, my feeling is that you are stuck in speculation.
Think about it, none of the prophetical or predictable points you brought up make any significance unless you add a whole volume of elaborated material, in other words unless you read your ideas into them e.g. that corruption flourishes on land and sea, does necessarily refer to polution, but simply the corruption of man as it involves man's action over land and sea.
As Christians we are able to make the exact similar claims, Hindues will effectively be able to do the same.
So no offence brother, but I suggest that you look at the real factors, exclude the speculation when making a reasonable assessment.
I myself, have been highly in favour of speculative elements when propagating the Christian faith, whether through biblical science or prophecies.
There are of course amazing scientific facts to be found in the Bible, and there are of course significant predictions of prophecies.
However, some of the prophetic predictions, are sadly presented as significant issues of over society, which they may not, it is a matter of speculation.
If I care I can show you the predictions of satelites, the Internet, wartanks, airplaines etc within the Bible.
Some of these may of course prove to be indications of the whole picture, but rigidly to propose a particular prediction to a television or a computer may prove wrong.
In the same way, that the world is round or hangs on nothing, or the moon reflecting the sunlight, or the ancient concept of the Big Bang, and universal expansion are all significant predictions, however, they all pre-date Islam and some of them may even predate the Bible (the Summerians).
The Koran however, falls into serious fallacy as it refers to the seven earth, presumable the seven planets of the solarsystem according to significant ancient scientific observation.
Secondly, how do Muslims explain the moon and the sun following each other in a different orbit as they mark day and night? Or how about their (the sun and moon) shelters of rest or prostration infront of Allah's throne after a full orbit?
How does a Muslim explain Allah's planatery war against the demons in space?
I was surprised the Maurice Bucaille was unable to answer some of these questions, and why he even twisted a different meaning to others.
All these issues and many more present factors which rebunk the integrity of the Koran and reveal its fallacy.
What I am saying brother, is that, in case you want to take every detail so literally and predictable to modern scientific observation and occurance, you certainly need to take the scientific absurdaties with full seriousity as well, excluding the idea that they are merely poetical idioms, but actual real scientific predictions.
No offense bro, I hope
God bless