Those coins who can now be called as 'late bloomers' are those having potentials. The usual is that, upon the release of a project to this industry, its potential to grow in the future will depend to its platform and long term development. Given that the projects mentioned by OP are projects with such characteristics, I won't be surprise if these cryptos will be bigger later. Whenever the market is bullish, not all cryptos are having price increase especially those projects which are not that popular. And gems will be distinguished to 'light' projects during the trend, I guess. This indicates that new projects should still work for their long term plans still coz there is still hope for the new ones in this industry.
Honestly I know a coin that kept improving more and more and more and there are at least 20 people who are trying to market it more and more and more and they are basically working tireless for 3 years and their price is at an all time low right now.
Sometimes even a good project, even after rebranding, even with thousands of dollars in marketing, even a whole lot of people working to get people interested for years, even when everything is literally what it suppose to be, they could fail. I am not saying this because I bought it and the price went down and I lost money, because I never actually bought that coin, a friend of mine worked for them and one of the people in the team, so I know what they are doing but it always failed, that is where I know it from. Crypto is 90%+ things that we all know, but there is always a luck involved for all coins.