There is zero reason to believe that, and I'd even go so far as to say it WILL happen again, and probably soon.

There are solutions being worked on, but they are not ready for primetime yet.

Every major blockchain is working on scalability (sharding, offchain transactions, and various other solutions are in the works)

So ideally there will be more traffic but less congestion

I think Bitcoin has maneuvered itself into a corner where the remaining dev team doesn't dare to do any hardforks in the future even if they are important to keep Bitcoin competitive.