The question becomes: Are these specific abilities required to make the concept work?
My inclination is to say no. That a class concept/archetype is a theme, a package of things, rather than a small sampling of specific abilities. But let's take a look at the abilities that we should do our best to try and cover:
Hide
Scout
Trueshot Aura
Searing Arrows
Starfall
Hide is easy. Shadowmeld already accommodates that. Scout is hard. I can't think of anything in the PRiest toolkit that can cover it. There could be an owl animation added to Mind Vision I suppose... Trueshot Aura is repackaged into a DPS cooldown, so probably Power Infusion. Starfall is basically just an AoE, so there's a number of options to choose from tha could work.