There are elections coming in 2023 (as scheduled) and possibly earlier if the opposition manages to force it due to current low confidence in the government. All prior ‘this is critical’ moments were either local elections (cannot affect the national gov’t) or sort of wishful thinking on the opposition’s part. This one is different, because Erdogan is not only not polling first in a very long time, he is polling fourth and the last.
It also is significant because the collapse of TRY to half its prior value was both swift and for the first time ever, visibly caused by bad leadership.
For fun I walked around the lise that was the polling center during an election 4-5 years ago. There were poll workers caught stealing votes. There was a vehicle without a license plate waiting outside the front door of the school to steal the ballot box if necessary.
There is also a massive influx of Syrian refugees who may be allowed to vote... and these refugees are said to almost entirely vote according to the Islamic perspective.
I don't see Erdoğan losing if the election were to be held today. But a lot can change in a couple of years, and as you say the economic situation may aid the opposition.
It also is significant because the collapse of TRY to half its prior value was both swift and for the first time ever, visibly caused by bad leadership.