http://www.youtube.com/watch?v=XfkMB5uvJ0s this vid shows the gist of campaign battles, around 5mins in i would skip to and you can really see a bunch of the npc's and the mobs fighting each other better.(but it is way bigger, the area is full of fighst like this with usually multiple types of mobs and then bosses start rolling in too) but basically this topic sounds just like campaign battles witch truthfully i always thought ffxiv would have in it right from the get go as content. i think the messed up servers and they ended up with besiege and hamlets that they had to squeeze in our weapons into it.
but i'm picturing the new version in 2.0 being like campaign battles. we jump to the one that is ready to fight(aka the npc monsters are strong enough to fight and are on way) they show up and it's waves of mobs, lots of them ...all have many types of classes and moves. mini bosses and kick ass mobs in the waves as they come. you win or lose and it ends. you got exp and signet points from it( we will probably get something else but in that jyst on top of our weapon seals and rewards) then you warped to the next battle ...we only had 3 in ffxiv1.XX but think about it there was so many of these hamlet in each zone that probably was supposed to slowly get added in some to the point where they would of had as many as ffxi had. a continuous flow of them.
but lol enough rambling. campaign battles were fun, but it was missing something after awhile. but if they make you feel like your always progressing from them i'd do them all the time. in ffxi if the exp was up to par with regular grinds in that game everyone would of done them in campaign battles. i'm sure this is what they truly intended with hamlets from the get go even b4 yoshi and tanaka was in control.
i dunno but some reason i think even though it will be just as hard to get seals % wise it might be easier for people to get theres when it becomes open world. but i personally think this is just the start of what our weapon will grow into as we level and the game gets patched and expansions.