Welcome to the forums. As someone who backed Pathfinder Online an followed it on the forums for two years, only to discover what an awful game it was, I certainly understand your fear of oversaturation. Hopefully Crowfall lives up to our expectations. I think it will.
As much as I would agree with Kloke, the developers do seem intent on having each archetype fit a particular role rather than allowing us to create the one build fits all character. In Ultima Online, I loved being able to stealth, track other stealthers, and reveal them (all while staying stealthed myself), but that game had a much more fluid skill system. In various articles, it does seem that they intend the role of tracker/revealer to fall in the Stalker's domain. However, they have said that some skills may cross over (limited mainly by available animations), so there's always hope.
Realistically what do I hope to have? Though I've gone the pet companion hunter route in WoW, I'm not really keen on having one in Crowfall - I dislike the distraction of having to direct them during combat, and depending how they're coded, if they don't steath when I do, they're more of a hindrance than a help. What I hope for is the consummate wilderness stealther for scouting and harvesting (gotta avoid those pesky monsters while looking for resources) who can also lay down traps so as to slow down enemies while my alerted heavy hitting friends are en route. I want hit-and-run, ranged cat and mouser who can slip away when the fighting gets too hot and pop up again on my enemy's flank to help turn the tide.