Netflix more and more is getting into there own content business, but they have some relationships at the moment with History Channel, TLC etc.. where you can catch a lot of those series. These relationships are fluid and come and go. They do have some high quality original programming, house of cards, orange is the new black, lillyhammer, marco polo etc.. Amazon also has some high quality they are putting out now, mozart in the jungle and transparent are two good ones, they also have a relationship with HBO on older HBO shows, not the new ones like Game of Thrones though, Hulu Plus has a lot of Network Shows and you can catch a lot that way, one premium service like HBO will be coming out with a standalone package you can get through an App later this year, cost not out, but guessing it would be $15/month.
But if you plan to cut the cord you would need to think about getting these additional services
Over the Air Antenna setup, figure out a way to record these with some kind of devise or watch Network TV live
Hulu Plus allows you to watch a lot of Network Shows: $8/ month
Netflix (1 year later like you said): ~$9/month
Amazon Prime ($99/year) ~ $8.25/month
HBO go standalone service, coming later this year probably $15/month
These 4 services would cost you around $40+/month plus add in the cost of your internet service..
Might be enough?