Sony is thinking of adding an "early access" program similar to Steam's on the PS4, according to this Polygon report. Speaking to Gamasutra, Sony's Adam Boyes said that the company has been having an internal conversation on how such a system would work on PS4. Obviously they want to balance accessibility with the safety and sanity of their customers who might not understand that an early access game is not a finished product.
"That’s one of the massive conversations we have internally — that, at what point does [a game meet standards of release]?" Sony's Adam Boyes said in an interview with Gamasutra. "We still at some point ensure that we're being mindful of the consumer. We don't want somebody to stumble across that title and expect a full product, and have a negative experience."
Obviously implementing a system for releasing games that are clearly unfinished to consumers works great on the PC, but the PS4 environment has a different kind of consumer.
"We obviously have our tech requirement checklist that people have to adhere to. So we're internally discussing, what does that list look like this? What are the caveats? Stuff like this. So it's still a project that a lot of minds are considering. No details yet, but it's something on the top of my mind every day."
You can read the full interview here.