It’s not a rumor! This comes straight from Eagle Dynamics; work has begun on the F-16 Viper. This is going to make a lot of sim pilots happy.
Here is an excerpt from DCS World News:
As mentioned in our yearly wrap up, one of our biggest projects for this year is the legendary F-16C Fighting Falcon, also called the Viper. In parallel with the Hornet, we already have a sub-team working on the Viper that includes programmers who have completed their Hornet tasks. Much of their focus is currently on the flight model, Flight Control System (FLCS), cockpit and the external model. Using much of what we learned with the Hornet, progress has been good, and is in no way slowing down Hornet completion.
As we pour the concrete, we can start to pass along some of our plans. Please remember they are plans, not timeline promises.
Our Viper will be an F-16C with the Common Configuration Implementation Program (CCIP) upgrade. We feel this to be the most versatile version of the F-16 with capabilities for SEAD, precision attack, close air support, anti-ship, and of course air-to-air. We will be taking great care though to develop a very accurate simulation of the F-16C Block 50 operated by the United States Air Force and Air National Guard circa 2007.
Read more straight from the source: DCS: F-16C Block 50 Announce