The emergence of new altcoin will certainly change the old altcoin market conditions. The more altcoins that appear, the more choices for investors and traders, especially if the growth of investors cannot keep up with the growth of new altcoins. old altcoin will be excluded if it does not develop.
It is true that many new altcoins enter the market but that does not guarantee that they will last long in the average market. The new altcoin only lasts for a short time and then is abandoned by the team so investors now prefer the old altcoin.