It looked beautiful and will definitely set the tone for future premium cabins.
I doubt that. It is an expensive and idiotic gimmick that makes no fiscal sense from a revenue per square unit, which, after all, is what commercial airlines are all about.
This is some nice PR stunt for the Oil Airlines to show off, much like the super tall skyscrapers in Dubai and stuff like that, which also make no financial sense.
Airlines today struggle with their normal First Class products, there is no place at all for a widespread adaption of stuff like this suite business, and certainly not at airlines that have to actually earn money.
Etihad has been doing a lot of idiotic things in the past years, their senseless buying of ailing airlines being the most prominent example, and this stuff is only a consequent extension of this trend.