I was very intrigued with the idea of something like this for a while, but it doesn't offer as much when you stop to think about it today.
Yes, there is certainly the novelty and nostalgic value, and I don't mean to diminish that, but the main value of the film body is as a foundation for attaching legacy accessories such as lenses and flashes. With mirrorless, that is already a reality and the mirrorless body additionally gives you the controls you would otherwise need to put on a digital sensor back-end.
Perhaps 10 years ago, when DSLR options were scarce and expensive, this would have been a great consumer friendly idea.
They state "slightly smaller than [APS-C]" and then drop the 2.58x crop factor bomb. Thank god that travesty was never released, because it would have flopped, and set digital photography back who knows how far. It was hard enough getting acceptance of the changeover without everyone's ultrawides suddenly becoming normal or short telephoto lenses.