I think waves is getting down now.. it was pretty good originally but for now its just becoming less and less promising for me
Universa is another project. Im really curious what it will end up with. Bet in 5 years you will use it even without noticing since blockchain (as a technology) and Universa (as one of these blockchains) will be everywhere
Unless a year after Universa someone will create even faster blockchain and everything repeats again.