If some day Shiba Inu Devs decide to make it a privacy coin, I think it will negatively impact on the price. So it should just keep being a meme coin.
A third-party app would be the best way for Shiba Inu to obtain privacy features without having to worry about the regulators. That's because privacy would be more of an optional feature instead of something mandatory for users of the cryptocurrency. You can see why Monero and Zcash are rejected by most exchanges. That's because they enforce privacy by default.
Shiba Inu is a "meme" coin anyways, so don't expect anyone to take it seriously for day-to-day payments. There are billions of coins in circulation, making the prediction of $0.01 per coin a distant dream. Who knows if it fades away into oblivion as people move on to the next big thing in crypto? Just my thoughts