No, my 4500 years to go is not wrong. It is unheard of, but not wrong. The end is being taught that it will happen when Jesus returns, but it will not. There is the millennium, then the release of Satan to go out and deceive the nations again, then the battle of Gog and Magog that Ezekiel talks about in chapter 38 & 39, then all of that is followed by the day of Judgment.
After the day of Judgment will be the eight day that Ezekiel talked about before this earth and all thing parish. No, 4500 is right on with the seven thousand year prophecy, plus the eighth day.
If you take the rate the universe is growing and reverse it, the time element reduces considerable. God made the heavens before he made the earth. The speed which God operates is far greater than we know.
Consider: light travels 186,000 miles per second. The brain thinks three time faster, can God make something that is faster than him? I think not.
Outside of theory, there is not bases to any claim.