I doubt this topic will be useful. I'm more of thinking this discussion is good for sharing the bad projects instead.
Generally, almost all projects are promising and their respective roadmaps should look interesting. Of course, that's what a project should look like.
However, we don't know if they will keep their promises and maintain the development on their roadmaps. If others will share their list of promising projects here, it might lead newbies to just follow them without any precautions.
Why risks for new projects? There are lots of coins out there that are worth to risk.