We don't know what they'll look like, but I'm glad about Ion's words, that they perceived the community feedback about the Legion legendaries as positive in regards that they actually had an influence on your playstyle (you could minmax the situation and choose a Legendary combination that suited the situation best) but they were just hard to grind.
This also had been my impression, that this opinion is common ground in the Community. (disclaimer: I didn't know all the legendaries of all classes, but for mine it felt awesome to have an additional layer of traits to mix and combine, apart from the talent rows.)