In the end, memecoin will die when the hype is over, now many may be consumed by the FOMO of memecoin solana network but this is not the best way of investing for you or anyone, this is a shitcoin that will not be valuable later.
I don't think Dogecoin will disappear anytime soon, and since it will exist, its success is a sign that more memecoins will try to take advantage of this success to claim that it may have future value.
Memecoin will remain with us for a while, but every once in a while a currency will appear claiming to be the best alternative to Dogecoin and disappear within months.
Believing that doge will not just disappear, the fact that Elon Musk is behind it, the oldest meme will still be the elder for other memes.
In the meantime the new memes are just trying to hype up the many enthusiasts on this one, regardless they hope to be like WIF, SHIBA or PEPE in the future but I say bullish if there are more memes like that.
I think memecoins will continue to come and go, in the sense that the old ones come out rugpull, then come again.