That's very hard. first of all pepe is a meme coin. And meme coin doesn’t follow any predictions, just they do whatever they want. most of people don't found meme coin as worthy. Shiba struggle a lot, burn a lot of amounts for Current position, doge got shield musk! Thats why two memecoin able to climb up. Dont know so will happened with pepcoin or not. But if any influence support pepe or pepe team burn the amount of pepe, then may possible to become next shiba but possibilities are few
the thing with newest meme coin that arises after shiba inu and doge is that the money need to come somewhere, while the fact that shiba and doge hardly shaken from its current position with current market capitalisation thats quite large, i don't think the capital will escape either doge or shiba inu and move over to the newer meme coin.
indeed the newer meme coins are in general generating massive trend and hypes around but thats it nothing gonna sustain their continued rise for so long.
after all it all takes money to flow in, meanwhile with the case of shiba and doge, they both also got institutional investors which is definitely helpful.