1) Until I see this episode can any of you confirm whether or not the village was killed defending Skye or her mother from either some undisclosed enemy or because the SHIELD Agents refused to stand down and were ultimately responsible because their backups may have arrived and completely misunderstood what had happened leaving only one survivor... Skye?
Unknown as to how they died (presumed to be from an armed assault). All we know is that her entire village and the advance Shield team sent in for the '084' (all but one) were killed there, and that sole surviving agent died still holding her (had been mortally wounded from a shot to their neck).
2) So someone killed Skye's foster parents?
No. Once she was in the foster care system she was
deliberately bounced around different homes thanks to Agent Avery's orders, to hide her trail from anyone looking for her (Skye always thought none of the homes she was sent to wanted her, but she was being moved around on purpose to protect her)
That either suggests someone is watching over her or they're after someone else and need Skye left alive to try and draw them out...
I think once Avery's plan was in place (and she was killed shortly afterwards) no-one was directly watching over Skye or knew where she'd come from or where she had disappeared to (Avery''s plan suggests she was hidden from Shield as well as they couldn't be trusted either. Someone got to Avery after all). Whoever was after Skye as a baby are likely still looking for her.
3) It could be coincedence that Skye's foster parents suffer from a particularly awful bad luck... reminds me of Longshot or perhaps the Black Cat works better at one stage since she did have probability manipulation... heck Mr Peterson's luck went as bad as you can get and still be alive after all!
I don't think there's anything there. I think Coulson's whole team would be toast by now if she were really some bad luck charm.
4) Those that have seen the last two episodes did it look like Skye had some remarkable bouts of luck accomplishing her tasks such as finding Coulson, rescuing him even though the place ought to have been heavily protected... I saw a clip on you tube where she gave Raina a black eye!
Wouldn't rule it out but I don't think myself there's any good/bad luck charm thing going on with her atm.
Hmm... how do SHIELD suppress the abilities of a powered individual?
Scorch certainly didn't have some kind of power negator, how will Blizzard cope?
With Skye, they have no idea what powers she may or may not have as yet. The agents who rescued her never saw anything, they were only
told she had powers.
With others we have not seen any evidence yet Shield can actually suppress a Supers powers, other than coming up with ways to knock them out (the gadget Fitz & Simmons whipped up to take down Centipede soldiers for example), or contain them (Graviton, though they didn't know he was still alive, is locked away in vault).