Relic Quest Progress

[Xeia]

Does this include my progress for spiritbond on an unfinished relic?

Probably. It was stated that while progress would be saved for completed quests, progress for half finished quests wouldn't be (so if you needed to kill 6 squirrels and had killed 5, you'll need to kill 6 again, etc.). They seem to be looking at the relic quest a little differently than the other quests, so if you're lucky it'll save. But my guess is no.

Will the parameters required for the spirit bond be adjusted so I can spiritbond in a party now that the exp earned from field mobs is reduced?

We have no idea. Like Dude said, try it during P3 and see what happens in a party. (And then post it here so the rest of us know :P)