I went through the list of new currencies/tokens on coinmarketcap and the number that I found that were remotely interesting was one. Very few coins offer blockchain improvements, they are mostly ETH tokens promising various services that will likely never materialize, bitcoin forks with technology that brings nothing new to the table that a dozen other coins don't already have, or other cryptos that again bring nothing new to the table that hasn't already been proposed in one manner or another by some coin out there.

None seem to want to improve the existing technology. PASC and XBY are the only two so far. I'll keep digging through older coins and see if I can find anything notable.