There are many. A "What are you Working On (crypto only)" would be a good way to see what's happening in this space. Coins are cheap now, capital rotation could easily change this rapidly, but there has to be a reason. But it's not all about building the price, it's also about building the utility and the two are linked. I actually think the upcoming Linux handhelds will open up new use-cases. Get people transacting in the real world. Pay someone, or providing a faucet by scanning their face or taking a palm photo? Ears are unique too. I don't know. Maybe with AI, biometrics could be enhanced somehow and offer more equitable distribution, and wallet security. Private ledgers and networks also important to stop a currency from being debased, perhaps.