So let me just begin with the fact that I am, or rather consider myself, a death fetishist, but with very limited tastes, mainly asphyxiation, vore, drowning and very specific types of gore. So naturally, I am not a big Bluestone customer, only bought a handful of movies around here and usually go for the products of certain other producers, since those tend to contain more nudity, rape and have a much stronger focus on strangling, often including a lot of tongue and the occasional urination, all of which I like. That being said, I respect how here at Bluestones you guys try to make things look a bit more cinematic with decent stunts (for this level of production), nice costumes and often very, very pretty actresses. Quite some effort, which is nice. It's just that a lot of it is not for me and that's fine.
The White Phoenix Saga, I always thought, was more geared towards the strangling crowd (since I do remember that it used to feature the tag line 'strangulation is her only weakness' or something similar). Still, not interesting to me at all, because as it has been made very clear, the White Angels can not actually die, which, of course, kills it for me as a death fetishist. I always wondered if that 'rule' is there as part of a fetish (like, i.e. the reformation fetish in vore) or just so you can re-use the actresses? Anyway, I am sure others will feel very differently about it, and that's great, but for me death actually needs to be final, at least within a self-contained story.
So this was all just to explain where I am coming from, with the following suggestion(s):
Since this will likely Danica's last time a White Angel, is the whole 'they always, always revive' really necessary here? If the answer is no, that might actually be a nice theme this episode. Agent Reese could be going after someone (i.e. an evil scientist) related to the creation of the White Angels. As it turns out, he has found a way to completely remove their powers (the story could also go vice versa – he has found an Anti-White-Angel-Serum and is trying to use her as a guinea pig, thus attacks her in her home). She kicks his ass – of course – and shows a cocky attitude but he finally manages to draw a gun or a knife (or a lightsaber as far as I am concerned) and manages to kill / knock her out with it. While she's down he ties her up, and gives her the injection. "Hahaha, I created you, I can destroy you just as easily“. She manages to get free, but is still dizzy from the injection and somewhat scared now that she is once again mortal - "What does it feel like, knowing that this time, there is no coming back if you fuck up? That you'll just be another corpse?“. She's off her game and thus he manages to overpower her – maybe she even begs for her life? - and – finally – slowly strangle her to death (I liked the suggestion above of her going out with a last, horrified "Oh god, NO!“). Then he waits for a moment, checks for life signs and when there are none, gets on his phone as the camera cuts to Agent Reese's corpse and final, shocked expression. "The serum works. Agent Reese is dead. For good this time. Inform the others.“. The End.
Now, obviously this is kind of my very personal ideal episode and everyone has different expectations and hopes for this one. Still, I do think that a strangle death would make sense given where the series has started out. And also that an actual 'final' death might not be a problem since it's Danica's goodbye anyway. As I said above, that is unless the whole reviving thing is supposed to be part of the attraction for someone, otherwise there's no real need for it here. That way the actress leaving at least somewhat ties into the story.
When it comes to wardrobe, it depends on where the story goes. Taking my suggestion above as an example, if Agent Reese is on a mission, catsuit would make sense, if she is attacked in her home, so would a more casual attire. Either way, if she happened to wind up in her underwear, I would be very happy (as, I imagine, many of us would, I imagine

Well, I have said my piece, rock on fellows.