Um, WPM and staff, Serebii already has the entire Arceus event translated. So... yeah.
EDIT: See?
Sorry that I cannot join in the discovery fun this time, but I did enjoy the little amount that I've played so far. Regarding the Arceus event, there are interesting things from the dialogues that I'd like to share however.
After you are teleported to the Shinto Ruins, you first encounter a hiker, who is very likely the same one who spoke about Arceus's legend exclusive to the Platinum game.
"It's so great that we have someone so young who finds interest in the Shinto Ruins! You can see from the design of these Shinto Ruins pillars that this is a merge of the culture from the Johto region and the Sinnoh region."
He then leads you into a mountain cabin where 'someone well known to all trainers in Sinnoh, and has travelled across different lands to study myths and ancient ruins' has incidentally stopped by. Of course, you see Cynthia inside.
The hiker further elaborates that:
"In the past, people received the life of Pokemon and also gave them life. I think this alone made people and Pokemon more connected than they are today, which was why when people migrated, myths and legends pertaining to the power of Pokemon also moved and started to spread across different lands.
The ancient ruins on this land was inspired by the legend from both Johto's Ruins of Alph and Sinnoh's Spear Pillar. In other words, in the past, this land was a symbol of the crossing between the Johto people and the Sinnoh people."
When you approach Cynthia, she says:
"I am Cynthia, a Pokemon trainer. When I came to these Shinto Ruins, I immediately thought of my homeland, the Sinnoh region. At first I thought it must it because the heavy snow is just like Sinnoh, but it actually isn't.
In the past, there were people who moved to this land from the Sinnoh region. They must have thought of their homeland and built a temple, which is now the Shinto Ruins.
!! Are you a trainer? I can feel a strong power coming from your Pokeball. The feeling of this power is like Dialga, Palkia... and Giratina? It feels alike but also different.
Do you have time? If I'm not mistaken, something will happen when you and your Pokemon stand on that stage."
If you talk to the hiker again, he will supplement:
"Arceus is said to appear from an egg. In Johto, I believe the birth of life from a Pokemon egg is regarded as something very sacred. It is interesting how lands that are so far apart have similar myths and legends"
Cynthia then leads you into the Shinto Ruins, and explains:
"This is the Stage of Three, a sacred stage made to worship Arceus. It is said that songs and dances that praise the mighty power of Arceus, and there are people in the Johto region who have inherited that tradition.
From the old scripture, it is said that when Arceus stands on the Stage of Three, time, space, antimatter... and the world will be born. In other words, the role of the Stage of Three will manifest.
I've spent a lot of time studying the ruins and myths of Sinnoh. Could it be that it was because I am meant to lead you to this stage...?"
After getting on-stage:
"There are drawings on this Stage of Three that represent the Pokemon who created this world. The symbol in the center refers to Arceus, the source of everything. This is the sign of Palkia who governs space. This side is the sign of Dialga who governs time. Finally, this is Giratina, who governs the other side of this world, the antimatter world where time and space are reversed.
You are the recognized trainer of Arceus. It is said that once Arceus, who created the universe, shows its power, that power can perhaps create new life from complete emptiness! When you pick one of the three signs, something will happen..."
You then make your pick, and Arceus creates your dragon, which is described as "The mysterious orb became a Pokemon! Player received Dialga/Palkia/Giratina!".
Cynthia:
"That shining globe, it was... an egg? Have we just witnessed the moment of the hatching of an egg no one has ever seen before!? An egg nurtures and cradles all life in it. This planet we live on is just like an egg too. The life born from an egg will catch on and go on to generate another new life... I think this is what Arceus is trying to show us."
Another powerful surge of energy fills the room, and you're back at the Ruins of Alph, ending the event.