The next event on the Scriptural calendar is the rapture of the believers. No other prophecy needs to be fulfilled before then.
Amen to that. I would agree.
HOWEVER, I would like to point out that although no "prophetic event" needs to be fulfilled to have that happen -- there are "facts on the ground" (as it is said) that need to be in place before it happens. Those "facts on the ground" are not prophetic events -- but are rather "realities of life" that need to be in place before things can come together quickly (and on time) during the 7 year Tribulation.
The question is -- how long will it take for all the "facts on the ground" to line up for the final events to take place. That's the unknown factor. We wait and see. And that is the reason why these current events are so very interesting.