The foundation of the IB suit seems to be that they feel without their present community, they cannot sustain their content and product. They feel that their website is being stolen, and stolen by a conspiracy with the WMF involved. This is a valid assumption, but it is *just an assumption. *I do not expect IB to understand what they purchased when they bought the wiki, because it didn't need explaining at the time. The IB WikiTravel site remains a wiki. It is free to edit, it is free to maintain, and free to build.
Not every wiki is capable of a perfect storm to build a huge and successful wiki, but any wiki is capable of a small, modest and functioning community to drive it. Most important is that the popularity of a wiki shouldn't trump its content. The atmosphere is what keeps people on any website, and the situation on WikiTravel has been, and will be, up to IB's choice of staffing the site to help the community, and its software development. Not unlike the principles behind the Wikimedia Foundation. If IB can make the place a nice wiki post-fork, they can build a new community. It's a website, there's nothing out of the realm of possibility.
The fact that they do not see this is evident, though. It's about the money in the here and the now.