I'd believe that, why not. I wonder if they were planning to sell NVMe as some separate licensed feature.What if I told you all of that engineering was already done, but it was all just killed in favor of other products?
But where is a problem, fusion-io devices were developed to be extremely fast and reliable. Back in 2007 it was achieved by using the main CPU to do all the mapping and management jobs usually done in a tiny controller. Both a killer feature and a sucker punch. The major drawbacks are still here with any fio-device: huge host memory consumption, "unclean shutdown" issues and power suspend incompatibilities.
Moving from proprietary host-based controller to standalone NVMe solution would reduce device performance to match some entry-level DRAM-less NVMe controller bundled with lots of channels of good MLC memory. I think there is no point in providing any better compatibility while sacrificing performance.