We believe that there are only 3.5 years of Daniel's 70th week left. There is no seven-year tribulation. To explain this properly requires more time than we have, but we do intend on producing a presentation on this eventually.
In Daniel 9:27, in the Aramaic, we are told that someone "strengthens (gabar)" a covenant, not that a covenant is "made." Thus, a covenant already exists and it strengthened. This is the work of Messiah Yeshua who "strengthened" a covenant with us "enacted by better promises (Hebrews 8). This process will take 7 years, from 26 CE to 30 CE (3.5 years) and from 2027 CE to 2030 CE (3.5 years).
The 70th week of Daniel is based on Daniel 9. In our studies, the 70th week began in Fall 26 C.E. and temporarily ended Spring 30 C.E. when Messiah Yeshua was cut off. We know this because it was the Messiah who strengthened (gabar) the New Covenant, and is related to the scope of Messianic work detailed by Daniel 9:
"to finish the transgression, to put an end to sin, and to atone for iniquity, to bring in everlasting righteousness, to seal both vision and prophet, and to anoint a most holy place."
The Messiah fulfilled the first half of the work in 30 C.E. which took 3.5 years and he was then "cut off."
to finish the transgression, to put an end to sin, and to atone for iniquity,
The Messiah will then fulfill the second half of the work ending in 2030 C.E. and will again take another 3.5 years:
to bring in everlasting righteousness, to seal both vision and prophet, and to anoint a most holy place."
While the Antichrist is mentioned in Daniel 9, the "he" who "strengthens (gabar) the covenant is not the AC, but refers back to the Messiah, as the context and focus of Daniel 9. Daniel 9's focus is not the AC, but the Messiah (see the 6 goals of the Messiah as the scope of the Messiah's work for the 70th week), and western eschatology has mistakenly made the focus of Daniel 9 about an antichrist when that is not really the point.
The structure of Daniel 9 in the Aramaic is a Hebraic poetic dichotomy, in which the subject bounces back and forth between what the Messiah is doing to strengthen the covenant, and what the AC is doing to attempt to stop it.
The "he" who strengthens a covenant (new covenant) is Messiah Yeshua, but he was cut off at his death after 3.5 years. The process will pick back up again at the Great Tribulation which is, of course, 3.5 years in length. The Messiah will then finish the remaining action items that need to be finished, concluding with anointing the Most Holy when Messiah Yeshua establishes the millennial temple (Ezekiel 40-48).
Thus, there are only 3.5 years left, which is why Daniel 12 only mentions 3.5 years and Revelation only mentions 3.5 years‚ because there are only 3.5 years left to go related to the 70th week.
The net net of it is this. It is the six things that the Messiah must do in order to "strengthen" the new covenant (Daniel 9:25). As an example, did the Messiah "atone for iniquity" in his 3.5 years of his first coming after the 69th week?
Of course he did.
Since that is true, then the Messiah's first coming of 3.5 years MUST be inclusive of part of the 70th week, and 7 minus 3.5 leaves us with just 3.5 years left.
Know therefore and understand that from the going out of the word to restore and build Jerusalem to the coming of an anointed one, a prince, there shall be SEVEN weeks. Then for SIXTY-TWO weeks (7+62 = 69 THUS ONLY ONE WEEK LEFT) it shall be built again with squares and moat, but in a troubled time. And AFTER the sixty-two weeks, an anointed one shall be cut off and shall have nothing.
This means that the Messiah is cut off (dies) AFTER, NOT BEFORE, the 69th week (i.e. 70th week) which ALSO means that the Messiah's death is part of the 70th week, 3.5 years after his arrival 483 years (69 weeks) after the decree.