Hulu, the joint-venture video site owned by NBC Universal, News Corp., Disney and Providence Equity Partners has long been rumored to be developing some sort of subscription service.

All Things D’s Peter Kafka reported as much last month, though he added that when it would launch is still unclear.

Still, two new intriguing pieces of data seem to indicate that the subscription service could find its way onto the site sooner rather than later.

The first was uncovered by the Los Angeles Times‘ Joe Flint, who noted that when responding to FCC questioning about its plans to charge on the site, NBC redacted its response. And quite the lengthy response it was. Suffice it to say, if the plans were in the early stages, the responses would have been shorter and more to the point.

The second comes from the Financial Times Ken Li, who noted in a tweet earlier than Hulu CEO Jason Kilar will be headlining the American magazine Conference in October, talking about… the need for subscription models.

As Li notes, “does that mean they’ll have one?”

Hulu has always been very tight-lipped about future plans, whether it is about a possible Hulu mobile app or deals with content partners. The subscription service is no different. But with the evidence mounting, the odds are looking good that some sort of service will be ready to go as soon as this Summer, and probably Fall at the latest.