So, the first image which should be the thumbnail of the official trailer for together again, now this trailer did come out during May 15th 2023, which is a bit before the game. So, some things could've changed but I think some general concepts haven't changed.
Before I address the content of the actual trailer I need to address something else and that is the voices, specifically the voice of Lake in this trailer. As seen with the 2nd screenshot, it doesn't provide a character name for Lake and only provides 7 blank spaces. Now what fits in 7 characters?

Demonic
Which if you see the 3rd screenshot, it highlights Lake's character bio which lists Demonic Entity as a voice.

Now we have gotten that out of the way, now we will be discussing the content of the trailer (link to the trailer so you can watch it yourself https://www.youtube.com/watch?v=c41fV9N1TdA&ab_channel=Heisenmorg)
Now the main driving force is about desire, the devil is very curious with how far people are willing to go, to fulfill their needs, their degenerate wishes at the expense of everyone else surrounding them.

"The desire for power" (assuming this is Oscar Magwood)

"The desire for forgiveness" (Rachel I think is this one?) If you have any ideas that will be much appreciated

They are many more examples in the trailer, but you get the gist of it. This core theme is still present in the final game. So, that hasn't changed which makes me think that the Demonic Entity's motivations hasn't changed either, at least until the night 5 minigame which then forms the idea of a project that they want to peruse with.

But all of that is post Oscar Magwood death as seen with the post highlighting "Die in peace, your servants will do fine in your absence" The only character that uses the wording "servant" is the entity themselves, so it does make me think they still have a big influence in the story https://gamejolt.com/p/die-in-peace-your-servants-will-do-fine-in-your-absence-ztgnpxei

Now I will leave you all something food for thought

I looked at the source code from this teaser (titled Nothing) right after "07", "Golden Alice" took Alice away into the darkness.

I found this line right here, now this is really interesting. Because depending how you do the math it can change the outcome a lot. Like if I do it from 1968 which is when Magwood was getting in trouble for the first time, so assuming there was a major incident that occurred at Lake café in 1968 that caused it to shutdown then it goes 1968+30=1998. Now 1998 relates to the new project leader poster very nicely as that's also 98, but then we do minus 10 which gets us 1988. Now from my own memory 1988 has no major events, the only thing I know is 1987 with Lake's Funland airing a cartoon show, which did cause Alice to gain even more popularity then. But I doubt it's about that at all.

It can't be talking about more into the future, as the quote is in past tense of us remembering what happened then.
one other idea is if you do it from the date Lake cafe opened which was 1961, so if you do that, you get 1991 and then 1981. Now 1981 there was 1 event, which was Alice replacing Susan the cat (one of Jame's Walker's robots), now Alice is made by Oscar Magwood.

Now my final idea is if we do it from 1970, the opening of Lake's funland, if we do the math we get 1990. Which is the year of the murders, the year of the Christmas together again ending minigame, which Oscar Magwood says the suit is for "bait". The bait for the children. So, this "07", "Golden Alice" character must've seen these events occurred.
Now it would be REALLY funny if Rachel was inside that "07", "Golden Alice" suit for the past 4 years, as she has been missing since 1994, and got revealed in this Wisconsin game! (this is a joke if you couldn't tell)

If you have any theories about this I would love to hear them!

Now if Heisenmorg highlights that the trailer has outdated information with the demonic entity, that is A-Okay. But am using this as a placeholder of sorts for the Entity's motivations, at least how it is at the start of the story.
Now I did write this very late into the night, so hopefully it makes somewhat sense lol.

Hope you all enjoy reading this theory on the Demonic entity's motivations and that text in the code of the "nothing" teaser