I'm totally down with that idea that we're nearing the end of this 6,000 period and about to enter this 7,000 year Sabbath. Really seems to fit the harmony of the Bible and how these "Sabbaths" are treated.
Along with this theme of 7's is the weekly cycle. Every nation on this planet, no matter how many times we've added weeks or months to the calendar...everyone observes a 7-day weekly cycle.
Good job friend!
It would be one thing if this concept was only seen through the lens of one verse but there are multiple verses and themes in scripture that alude to this. It's symbolically make sense. God loves using numbers to tell stories.