I have nothing against wanting to invest in altcoins. But I do believe that only very few and close to little altcoins will reach new ATHs. Maybe they will just rise for a few times but ethereum or xrp may not reach their ATHs again. There are other reasons why one would want to invest in altcoins like transactions purposes but I believe if you are hoping to see a coin reach new ATHs this cycle, it will only be bitcoin.
This is not new to me at all and I have posted about it several times on the altcoins discussion. I warned people to be careful when the altcoins were performing. The altseason is now gone but which some people do not regard as altseason because bitcoin dominance did not reduced.
Also it is worth knowing that most altcoins did not get to all-time high at all in this cycle.