Nothing's last forever though, but for sure the meme coin hype will last longer just because a lot of people are trying to get good profit faster than trading in the market or hodling bitcoin and other promising altcoins. We have witnessed how a handful of memecoin get up to 1000+ profit in just a matter of months. That alone is the reason why the hype will never end, people are willing to gamble to a coin that doesn't even have any uses.
These never ending creations of memecoin may not be the only thing that contributes to network traffic, there are also a few main factors. This either could be a really bad and frustrating thing especially for those who constantly have transactions, and it could also be a good thing so the developers would strive to continue to innovate the network problems.
Therefore, I think I can consider this a good thing to stay until people will have to lose more and realize on the latter LOL. Of course in the lighter side the devs will have a quite challenging scenarios to fix the network problems.