Greetings in the precious Name of our Lord and Saviour, Jesus Christ.
Concerning the "prophesies" referred to in the Quran: There are no real prophesies in the Quran. By that we mean that there are no detailed prophecies far in advance of an event to convince one of the Divine origin of this book.
Surah 30:2-4 which you refer to speaks of the Roman Empire being defeated. This occurred well before the life of Muhammad. The Western Roman Empire had collapsed in the 5 th Century, well before the birth of Muhammad, and the Eastern Empire was in serious decline at the time of Muhammad's life. The specific defeat that the Yusuf Ali translation and commentary tries to refer to in the footnotes is listed as 614AD. This is well before the Quran was put to writing which was after the death of Muhammad in 632AD.