No question, investing in a new project is the option that gives you high return. However, there are things you need to consider before investing in a new project like the project itself, if it has a good potential to grow. You need to do some personal research especially the whitepaper of such project you want to invest in. You also need to check the background of the development team especially their previous projects that have been successful.
New projects can't definitely give you high returns because aside from the fact that it's new, investors don't really jump like that just because of the reason that the certain new project has a good potential to grow, that reason ain't going to be enough because we are talking about money here and we aren't here in this industry to lose our precious funds. So, in my own opinion researching and checking their motive alone cannot give you the certainty that this particular project will eventually be in demand soon and can give you profits. As for me, I'll still go to those projects or coins that have proved its worth over the time even if it's going to be an expensive investment as long as I know it'll be worth it and will give me returns that I'm expecting in a few months to a year span.