the nurses that didn't use proper protocols that resulted in them being infected by the virus.
It wasn't the nurses' fault, they actually followed the protocol from the CDC but that initial protocol was flawed.
My prediction is a cure (similarly already have one) but a complete cure to this in about the next 4-6 months.
I doubt it.
They may have some success with antivirals (and with plasma of those that have antibodies), but it will be very difficult to prevent Ebola as it is a RNA virus that is prone to mutation. Our best bet is to contain it, educate the populace of the world on zoonotic diseases, and perfect better detection methods for the populace.
Ebola isn't a stable pathogen like Smallpox and will prove close to impossible to eradicate through conventional treatment alone.