Apparently, wanted NMs are indeed spawned by touching an object, but they require a three person group (why!?) to even spawn the NM (Trusts do Not count), so couldn't test it out with just myself and family member, which was kinda a bummer.
So basically, solo you can get a bunch of accolades with the RoE objectives, but you can't get any actual rewards out of it (outside of the gobbie key, no idea what exactly that gives you but it requires a LOT of accolades, like 15k IIRC) without a minimum of 3 people.
Dunno if you can participate in kills if you're not invited into the group, though. If it is a requirement to be in a group to participate, then I can see some drama/refusal to invite people that aren't awesomely geared going on/refusal to invite certain people/etc going on and that will pretty much kill the whole thing for its intended purpose.
Hopefully they didn't do something stupid like that or Unity will be basically "Niche groups/endgame shells only" kinda thing where your average player who has no endgame shell that really needs this content can't get to participate because nobody wants to invite him because he doesn't have awesome gear/endgame experience.
EDIT: I'd also have to wonder how the looting thing will work. If items are just dropped off of the mobs, won't we see loot drama going on, or did they make loot personal?
EDIT2: Re-reading the Concord stuff (that I somehow missed the link to), looks like you do indeed have to be invited into the group... don't know why they didn't just make it so that anybody could show up and participate to reduce problems with people refusing to invite people they don't know/like to these things.
Edited, Nov 10th 2014 5:32pm by Lyrailis