As you mentioned, there is the debate between a total of 49 or 50 years for sequential Jubilee counts. For whatever it is worth, here is some information to consider.
1) Jubilee Count
There is no evidence in the Bible of just a 49-year sequential count. The book of Jubilees mentions a 49-year sequential count, but there are all sorts of problems with the book of Jubilees, and that would just be one of them. There is also evidence that Ezekiel may have revealed one or perhaps two Jubilee counts. If one subscribes to a 50-year count there are no compatibility problems with the Bible, only agreement. If one subscribes to a 49-year count, then the following prophetic occurrences and patterns in scripture are only a coincidence or accidental: 1) 120 x 6 = 6,000 2) 80 x 50 = 4,000 3) 40 x 50 = 2,000 4) 46 x 50 = 2,300. Thus, there are several witnesses in the Bible evidencing the prophetic utility the 50-year sequential Jubilee count. There are no patterns or prophecies in the Bible that use a 49-year sequential count of the Jubilee. In that way, the sequential 49-year Jubilee count becomes completely prophetically useless.
For example, this is why the Messiah 2030 film highlights John 2:20 as valuable Biblical insight to the proper Jubilee count understanding (50 x 46 = 2300) in the context of temple restoration patterns.
2) All appointed times and prophetic units are Messianic.
That means that the two prophecies embedded in the Jubilee are also Messianic, that is “freedom” and “land restored.” The Messiah not only has to fulfill these Jubilee prophecies, but he has to fulfill them not only on a Jubilee, but the precise appointed Jubilee for each. The first fulfillment “freed” us from sin and death. The Messiah had to die/resurrect on the 80th Jubilee to fulfill the first requirement of the Jubilee. He did just that. The second element of the Jubilee prophecy that must be fulfilled is the restoration of land, and that must occur on the 120th Jubilee. That is still pending but coming soon.
Also, using the genealogy count to determine the year of creation would place creation well before 3,896 BCE, which is another problem only for the 49-year Jubilee count, but spot on for the 50-year Jubilee count.
3) 30 CE = Jubilee Year
Lastly, the Bible declares that the year of the Messiah’s death and resurrection was a Jubilee year, as noted that it also had to be according to the prophecy. While there is a great margin of error in backdating counts, a repeating 49-year Jubilee cycle does not appear to have the Messiah’s death and resurrection occurring on a Jubilee year. This is not only inconsistent with the Bible noting how it was indeed a Jubilee year, it is also breaking the prophetic pattern and two Messianic components of the Jubilee.
Messiah 2030 has some assumptions built in as well, which should be acknowledged.
1) Temple was destroyed in 70 CE (not 68 or 69 CE which would place the timeline earlier)
2) Masoretic genealogy count, not Septuagint.
3) The repeating prophecies and patterns are being interpreted correctly.
The net-net of it is this. A repeating Jubilee 49-year cycle appears to have zero prophetic messianic utility with several problems, and a 50-year repeating Jubilee cycle appears to have more than several Biblical witnesses demonstrating prophetic messianic utility. One has to decide what to do with that information of course. Some are rather dead set on a repeating 49-year cycle. We simply cannot make that work, based on the assumption that the Jubilee cycle means something and not nothing.
In Leviticus 25 we read that we are to count a 7x7 for a total of 49 years. Then we are to count 1 for the Jubilee year, the 50th year. If we are to count the Jubilee as 1, and count the 1 as also part of the 7x7, then we are counting that 1 year twice, which we submit is a mistake in of itself, let alone a violation of the prophetic patterns.
Thank you for your thoughts, they were appreciated. :)