If the predictions from Telegaon turn out to be accurate in 2040 and 2050, current SHIB holders might earn generational wealth. However, 28 years is a long shot from today, and a majority of current holders might sell their holdings by then.
Previously, keep in mind that there is no analysis that can accurately predict the future growth of crypto prices, to be honest I personally am not sure if the SHIB price will be able to have a price like you mentioned $5 even in the long term because so far if we note there are no real fundamentals growing in the SHIB coin so nothing to help push the price higher in the future.