Heyo, long-time player, and I rarely post here, but I have seen a lot of complaints about this but am actually a bit bummed about this one, myself!

The new Rescue Site content seems legit. I'm excited to play it and probably will on an alt very soon, however, my main knight is already pretty well-established in Haven... and I hear there's a new "artifact" item? The completionist in me is crying. However, I do understand that things like this do change.

It'd be nice to be able to find some way to compromise, though. Another thread here suggested a way to return for a prestige mission to help defend the Site from baddies. Potentially do-able, even creating a "separate" crash-site in-server so that the new players and experienced players are separated (sort of like different Havens)?
Something like this could also be implemented to let existing players return to complete the new boss fight and get their artifact. Perhaps force us to use 0* equipment to get it done, too. ;)

Just a thought! Thanks for the release either way.