Things get interesting (or more so)
Unearth
ʌnˈəːθ/
verb
past tense: unearthed ; past participle: unearthed
1.
find (something) in the ground by digging.
"workmen unearthed an ancient artillery shell"
synonyms:
dig up, excavate, exhume, disinter, bring to the surface, mine, quarry, pull out, root out, scoop out, disentomb, unbury
"workmen unearthed an ancient artillery shell"
antonyms: bury
discover (something hidden, lost, or kept secret) by investigation or searching.
"they have done all they can to unearth the truth"
synonyms: discover, uncover, find, come across, hit on, strike on, encounter, track down, bring to light, reveal, expose, elicit, turn up, dredge up, ferret out, hunt out, fish out, nose out, sniff out, smell out, take the wraps off
"some recent research has unearthed an interesting fact"
antonyms:cover up
2.
drive (an animal, especially a fox) out of a hole or burrow.
Alton have been adding bits to the video descriptions I think- sure this wasn't there before?
In a clearing, a mountainous hand built structure is taking shape. Looming over the woods, its incandescent glow ominous yet mesmerizing. Only the chosen few may enter. Be chosen.
Hmm, take another very close look at the plans- this *might* not be the Wicker Man/Ram as you'd first think. Maybe there are one or two other theming elements still. Is there something for the queue to enter? It could be the man/ram and it's correct that the other theming envelopes have been scrapped, but perhaps they haven't been, only four days until we know, Alton are cleverly leaving even us sleuths with uncertainties! It still seems odd that the man/ram is structure two and the one marked as number one seems odd- as has been suggested it would obscure the now seen second one, really confusing pondering this on the plans- do we enter under the fire (pyre?), awesomely therefore I'm still excited even with what I (think) I do know!
And this enigmatic bit of the interruption message in the earlier teasers
"Come join us near the woods and partake in our celebration. How far you choose to go... that is your choice. What part you choose to play... only you can decide."
Is there a choice visitors to the experience make in some part of it?
Four more eggs spotted- candles with 'gift' > wick!, poses of actors in park at Scarefest matching video poses,
and the last clue being 'Ritual' - a certain movie was based on a book of that name in which the victim has gone somewhere of his own free will... Beware the desire to be chosen? Mwahahaha.
Unearthed: I think this is re. the wicker man emerging from the earth (but also fits its unveiling) - Alton seem quite keen to emphasize the 'groundbreaking' nature of Nemesis as well - it seems intentional that they've used the same 'groundbreaking attraction' tagline in reference to Nemesis and mention it being a European first.... The former could be for this reason (and the Nemesis 'creature' is emerging from the earth of the ride's excavations) but they're playing with us as to whether SW8 is some sort of first ride-wise as well, this does remain a possibility like the 14 inversion surprise of SW7, something could be sprung on us! They're teasing this possibility by highlighting SW8 being the latest in this series.
I'd spotted the date being palindromic/mirrored too, 8.1.18, someone else pointed out some people would write it as 1.8.18
1= connection, first, origin. 8=infinity. SW8 (the number symbols are... interesting) and one 8 (ate, consumed...) 18 > eaten/eating sound suggestion, feed the flames....
Although my earlier post wasn't placing any significance on how you were marked, the comment not all 'Chosen' had the two lines is correct, rather just that you were marked with ash, quite a few of the marked did have the two lines and this seemed most common although I only saw a very few 'marked' people, it does echo the 1.1 in the date and the 1 symbol. I saw three lines as a mark too though - so could be a case of once you know there are easter eggs and planted connections you notice things that aren't just because you're looking, but then it wouldn't be out of the question for the creative team I mean the villagers to represent 'the chosen' in their symbols

Ignite your senses- something multi-sensory about the ride? Blindfold bit of maze had wind, the distorted (fire sound?) music and people grabbing your legs, could be other things I may have missed! Don't think the latter will be part of the coaster though!
And finally two other thoughts of different possibilities:
The Wicker Man could be some being the villagers have awoken
Have the Beornen not just faced death but survived it? Have they already undergone the ritual?