There are still a lot of good altcoins coming, but the problem is trust and confidence it's hard for investors to trust new projects because of the current market condition, the project cannot generate enough funding and investors are more on IEO now, which they considered a much safer option.
It will be better then for those projects that have very good products and solution they wishes to offer the community to go true the ICO them, I agree with you that we have lots of potential projects that are coming out or are preparing to do so, but their light is being covered from shining to the world because of ICO bad reputation already which scammers did a lot of damages to.
So, it is either those good project go through IEO or STO to be able to successfully raise fund, because there is nothing investors can do again in ICO, they cant keep reading and researching and yet still be falling victims, it is quite tiring to them.