According to grammar manuals, "this week," "this month," "this year" all pertain to the week, month and year the writer is currently in.
"Next week, month, year" implies the future.
So, Jesus was telling about the 33 AD present when He was delivering the Olivet Discourse.
Are you a new breed of preterist that can't even wait to get to 70AD?
I assume we'll hear from you that John wrote Revelation in 32AD???
Tell me, Dr. E, was Jesus talking about the future in the Olivet Discourse?
context, context and context
I think it's well known
THAT . . . DRUM ROLL . . .
AS IN MOST THINGS . . .
CONTEXT . . . . C O N T E X T
IS VITALLY, CRUCIALLY IMPORTANT IN LINGUISTIC UNDERSTANDING.
And, as has been pointed out, the root word translated as "this" can as accurately or even more accurately be translated as "the same." IGNORING THOSE TWO FACTS does not help the silly notion that 70AD was the END TIMES era.
1. CONTEXT DETERMINES MEANING
2. "THIS" in that context and even per the root word meaning = "THE SAME" as in THE SAME GENERATION THAT BEGINS TO SEE SUCH THINGS COMET O PASS WILL SEE ALL OF THEM COME TO PASS.
SIMPLE.