I don't know about ETH really, or for that fact any other crypto, for the next 20 years there will be nothing to challenge the status of Bitcoin as the gold standard of crypto. And Litecoin as much as I like the coin and project, it specifically marketed itself in the past as a silver standard, next to Bitcoin. So in terms of price it will never catch up, but in tech? Litecoin got segwit first remember?
Well, I don't know too much about altcoin but I can see that technology of bitcoin is really outdated when compared to altcoin that appears after bitcoin because many experts have shown it clearly through the charts of the features and effectiveness of these technologies compared to bitcoin. However, although technology has shown too many weaknesse but in terms of value, altcoin remains forever incomparable to bitcoin when bitcoin's lead is absolute and perfect, no one can catch up to bitcoin in this regard when capitalization and market support for it are overwhelming.
But what do you mean by outdated technology? Old doesn't mean outdated. People usually refer to transaction per second, that Bitcoin only has 7 max or something like that, and others have 100s per second. So that's faster, right? But no, wrong. Ask most merchants and they will say they only need 1 confirmation (or even 0 in many cases) for deposits to appear. But for alts? There is no such thing as 0 confirmation, they will wait for 10 or more if you're lucky.
And tech? Bitcoin got Segwit long before most alts did. Just to give 1 example.