As the administrator of THE most popular KF server globally by player numbers, responsible for servicing a huge number of their paying customers suffice to say I am one of Tripwire's biggest fans and have a lot of interest in issues like this.
That also puts me in a very good position to give my frank assessment of this issue and I am pragmatic and will not sing their praises mindlessly or gloss over uncomfortable truths. If everyone did that nothing would ever improve.
The summary is that unfortunately this will not happen for a myriad of reasons but primarily the cost of development and licensing since they are a game publisher out to make a profit and keep costs down, not a group of modders despite the PR. Also game publishers stoke up rumours all the time to test concepts, until there is a signed press release, magazine articles and conference tech-demo showing so there will be no KF2...