Is it possible for this system to becomes obsolete in the future?

Anything is possible but that said, it is highly unlikely. 

Question: Does the Triple Sync Logic trading strategy ever go out of date or not trend the same way with the market?

The mechanism behind why our trading strategy and software will continue to work for many years to come is because it is based on spotting high-probability "market reversals."

Market Reversals are repeated in stocks every single day because it’s the “secret weapon” professional traders use to practically guarantee intraday profit. They’ve been doing this for many, many years and will continue to do so. 

We've been trading this same approach for 23+ years. Why? “If it ain’t broke, don’t fix it”.
TSL works in all three market types (trending, cycling, and sideways) because of how it was designed to force us to wait, to get into trades at their turning points.
With a bit of screen time, you will be able to easily identify the types of markets and be able to judge when you should watch any particular market for potential reversals.

If you’ve read my report on “Market Reversals”, you’ll learn that Market Reversal have been the bread and butter strategy of large institutional traders (the Smart Money) for YEARS.

That will continue to be the case.

Our TSL system simply allows us to spot these market reversals and ride the “Smart Money’s Coattails” into profit.