In this article, I'm just going to put things in point form and not go into lengthy explanations but  the reader can closely examine what is pointed out by themselves if they want to see whether its in line with God's word or not...

1) God had from Noah's time set firmly in His word that He will allow only 120 Years ( which are Jubilee years ) for man to "strive" with Him and will not allow it to exceed that allotted time.

2) 120 Jubilee years is equivalent to 6,000 years ( biblical years ) and therefore, the very longest time for this period to expire should not exceed the 121st Jubilee year and it should be carefully noted that legally, there's another 49 years from the 120th Jubilee onwards to arrive at the 121st Jubilee before the 120 Jubilees can "officially" expire.

3) When God referred to the times of the gentiles, it is very possible that He is referring to the exact same ending time period as the above 120 Jubilees, so, the verse that says " until the time of the gentiles has come in"  or the "fullness of the gentiles" can be interpreted to also say " when the time allotted to man has fully expired".

4) Basing on all the above facts and truths, a plausible "big picture" timeline can be worked out as follows:

a) There are 40 Jubilee Years from Adam to Abraham, another 40 Jubilee years from Abraham to Jesus and the last 40 Jubilees from Jesus to the beginning of His literal 1000 years rule is the entire big picture...
 

5) And If the above are all "fixed" by God's own words, then, a fairly accurate dateline for the 121st Jubilee can be worked out as follows:

6) If the 80th Jubilee was around the birth of Jesus, then, 40 Jubilees later from that time will bring us to the 120th Jubilee year and basing on the biblical calendar of God @ 360 days per biblical year, that should arrive around 1969 if Jesus was born around 3BC. ( so, the world had actually reached its 120th Jubilee around 1969, give or take 2/3 years, maybe.). This means that the Lord had actually had the legal right to end the times of the gentiles as early as 1969 ( bearing in mind that even Jerusalem was back in Israel's hand already at that time as well ) but is instead, using the final 49 years that He knows are left before it MUST all finally end ( as far as the age of the gentiles are concern ) without violating His own words...and He knows that He could choose the Rapture to happen anytime within this final 49 years and no more than that....

7) And if 1969 was indeed the year of the 120th Jubilee Year, then, for it to reach the 121st Jubilee Year, another 49 biblical years added to it will bring us to around 2017 / 2018! ( and that is the "maximum" allowable by God's own word in this particular case. )

8) Even God Himself can only delay for that long and He knows it ( for His mercy's sake etc... ) and He can run out of time in accordance to His own dateline already set with Noah....

9) In conclusion, there are 2 possible final scenarios from this:

a) He can allow the 7 years of tribulation to be inclusive in this timeline ( which is already quite impossible if the dateline is indeed 2017 / 2018 and He needs at least 7 years before that to include the tribulation into the timeline ) OR, ( which may be the ONLY possibility left at this time )

b) Let His mercy and longsuffering be stretched to the very maximum to allow the fullness of the gentile period to end only on the last, final day on the eve of the 121st Jubilee and then, can still allow for a special 7 years tribulation period after that before the 121st Jubilee can really begin...quite similar pattern to Daniel's final "week" postponement, but this time, only allowing a specific 7 years tribulation period after the fullness of the gentiles expires on the last possible day and second.


Special Updated Note:

As it seems, in this late hour, that from a few sources, the "official" 7th Shemitah is from Sept. 2014 to Sept.2015, then, it would also seem that the Jubilee Year ( 121st Jubilee? ) is scheduled to start from September 2015 through Sept 2016 as well and it also looks like the Lord may have chosen scenario 9b ( because 9a doesn't seem to be able to be applied at this point as the Jubilee has already arrived! )....and if that's the case, the pre-tribulation Rapture of the Bride of Christ must happen before the "scheduled" Jubilee Year begins in September 2015!

The key point from all the above is this....the Rapture MUST happen between NOW and September 2015 and NO LATER THAN THAT and its very likely that  its much earlier than September 2015 as the tribulation will not happen immediately after the Rapture and the world may have at least a few months after the Rapture before the 7 years tribulation begins.  Our watching and waiting is finally going to be truly over very very soon....we may have only days or a few months left and no longer than that as the Lord Himself has also "run out of time"!!!