We can probably do without spoilers now, the next ep is tomorrow ;D It's quite sad how much I am looking forward to it >.> As such, I have been pondering the situations! Not got comments on all characters but these are what I've been thinking...
Simmons really intrigued me there. I don't think she's HYDRA, and I'd really prefer it if she wasn't. I've seen a lot of people speculate that she is due to her not saying anything when Hand questioned them, and her insistence on researching the GH325 but I think that's just her science nature. The "I'm getting better at it" line is very odd... the way she said it I actually thought Trip had left the room and she was sort of talking afterwards, but he hadn't... it's likely she was referring to recent events but I wouldn't be surprised to find she's lying somewhere. With this show I've come to the decision that NOTHING is purely coincidental.
Trip, eh, I want to like him but so far I'm not a huge fan. His first episode he was very weird, changing the subject almost as if to taunt Ward like they had a some sort of conflict in the past. I keep seeing people referring to there being some sort of mutual interest between him and Simmons - he certainly appeared to have interest in her when he first arrived if a little creepy (the whole "you can't imagine life without her" thing was a bit sudden, and the whole thing was at a bit of an inappropriate time lol), but I can't say I've ever really thought Simmons reciprocated. When he invited himself along to the hub with her she looked a bit sort of "oh, erm, ye woo..." faking being happy about it. The anger at Garrett when he was discovered sure looked genuine, so I doubt he's evil... but (no idea where the infos from) I've seen a fair few people say this is his last contracted episode so it may not matter at all.
Ward I don't think has been HYDRA all along, I don't really think he is right now either. There's no way I'm convinced he's some sort of triple agent still working for SHIELD, but if he had been HYDRA all along I'd expect him to be more upbeat at the end. They knew about HYDRA revealing themselves before they arrived at the hub, so if he was planning on turning on them there would've been no real point to the Skye scene, instead I think his realisation that Garrett - someone he will have felt a very strong bond with due to their background - was not only HYDRA but also the Clairvoyant started him thinking that no one can be trusted to protect those he cares about except himself, as that's why he got into SHIELD in the first place (or so he says). Hand's decision to have him murder Garrett instead of imprison him probably just cemented that, so ultimately I really hope he is going rogue and doing whatever he thinks will help him protect Skye the best. The look at the end really showed him to be dealing with things on his conscience and quite angry - not something I'd expect from HYDRA.
Skye, not sure if she actually had any interest in ward before now, with things like using the x-ray glasses to see him naked being more of a "because I can", even when he tried to tell her how he felt she still rebuffed him until he went to sacrifice himself (although she's female, so who knows
). Her origins/powers/whatever seem to have taken a backseat for now but it'll probably manifest in the finale. I kind of think of her as joint main-character with Coulson, the show started with her but was always meant to be more around him, but his story led them to the GH325 which will have the big effect on her in the end. I really hope she ISN'T a comic character unlike most on a forum I read, because it will restrict storylines more and there'll become loads of "oh why isn't she wearing her costume" or other such things. Coulson is sort of the main guy in the show so there's no way he's going to be evil, and with Skye being pretty much central I don't expect it from her either. TBH Ward (and to a lesser extent May) have been the most "in the shadows" of the team so are the only ones that make sense for turning.
May, nothing to say really other than why is everyone in love with everyone else, May hinting at feelings for Coulson there
Love that she assembled the team though, taking the trust away from Coulson even more!
Garrett. Damnit! He is so likeable as the bad guy, what with Bill Paxton being awesome, but it means he's less likely to hang around
For the series in general, the writing has without a doubt got stronger but in the end all those people who complained that awesome episodes like this are too late need to remember, you can't throw in these huge events and twists right away, because the audience hasn't connected to any characters enough for it to have any actual impact. The first half of the season is getting to know the team and the background behind the villain. Stuff like the eye implants being shown in their own episode rather than just adding it in as an after thought when they start axing the super soldiers.