After playing it i can say the DLC I think had a nice legth (I did it all in little more than 3 hours) and the gameplay gimmick of playing with a powered being is cool and it feels now that it was Capcom's plan all along, when they finished 7 they intended for 8 to be like this... well while I can't really prove those were their plans from the begginning maybe there's some evidence to backup my allegations here... Use a bioweapon as a character is bold move and I really still question if this can really be made into a plot for future games though? Even more if they keep bringing Miranda back...
Because if you think about it they tried to pick up on some ideas of how to softly incorporate powers unto the gameplay mechanic and the whole environment be used not just to play on the survival horror aspect but also further the story with the Michael subplot and how he talks to you and that connection gets more and more intense while you progress through the DLC...
It seems though this was a big way for Capcom again experiment further with gameplay formulas and a nod here to two of the early names that helped shape Resident Evil that were there during it's origins (original RE 1 and RE 2), being Kenichi Iwao and Hideki Kamiya
First off the nod to Iwao is mostly due to two things:
Number 1) the original idea Mr. Iwao wrote RE 1's Tyrant ... It was not just supposed to scary players only for its huge size, exposed heart and sharp claws, but because this "ultimate lifeform" in the original draft of RE 1 would be capable of controlling the other T-virus zombies, yes so RE 7 picks that idea for Eveline as a bow that can influence the kind of others through mold so it actually is a twist on that concept from Iwao that was never explored (as I am not sure if the zombies would react to the Tyrant through pheromones or another scientifical fluff explanation) but unfortunately the final game didn't implement that maybe because Mikami cut it due to not really agreeing with it or due to not enough budget or time to insert it at the last stretch of the RE 1 development.
Devil May Cry...
people may dislike and say it doesn't work as survival horror but it's clear to me Capcom.
2) Iwao's writing of Parasite Eve (specially the first Parasite Eve game) as a template for a heroin, if you play PE it's hard not to notice how the story has these flashbacks and how the protagonist and antagonist are these 2 women both having powers and then clashing... Now after knowing this try and put Shadows of Rose through this lens to see how it puts Rose against Eveline and later Miranda/Black God and how the story backbone focus on both Rose's past of being a bullied kid because of her ties to the mutamycete and Eveline bow Research and also what left of Ethan's memories inside that hive mind, so during Village's DLC we basically witness these deturped moments from mostly Rose's point of view but also Ethan's and how that was the biggest "glue" that made 7 and 8 linked and part of one story.
Next the nods to Mr. Kamiya:
3) before all the turmoil of RE 4 it was supposed to be a PS2 game about a main character with powers but after looking carefully the teams considered it a concept that deviated too much from the formula do to the action elements getting an over emphasis. So Devil May Cry was born, Mr. Kamiya later went on to develop Okami a game where there's very peculiar game mechanics with a brush, but basically you had to use the power of the brush to be able to overcome the game environment's obstacles.
So basically Capcom does a job of fusing some elements of power toa survival horror and since experimenting with envirinmental storytelling and through their on spin on previous glimpses of ideas for the future (power concept and how that could apply to a survival horror with sci-fi bows)
While the supernatural aspect does seem shoved in RE story if treated as a stand alone entry I don't see much harm done and both bio 7 and bio village a sprung from those past unrealized story and gameplay concepts that were cut from previous games (maybe because they had yet to make it all gel , just enough for them to fit into a proper survival horror game).
As for the future, although the DLC makes it look like Rose has big powers now, once she basically threatens the SUV guy I can't really see how these powers she manifested in the mold realm can be really useful for the "real world", unless she can now effectively do the same stuff Eveline could do, but without the fungal mass?
It's still up in the air though...
As much as there is a possibility for a battle between Rose and other gifted child villain like Natalia Korda/Alex Wesker I can't really see how to expand this unto a really interesting battle enough to make it turn into a Revelations 3 or RE 9...