The project at
http://projects.goldelico.com/p/gta04-kernel/is working on providing support in modern kernels for all hardware developed by Nikolaus. Whether ED plans to use this kernel I don't know. Also some full distributions (e.g. Replicant with phone support, but currently on an older kernel version, because a lot is still missing for the device tree based kernels) are being worked on. In theory these could run on the Pyra, too. There were some nice presentations on this topic at the OHSW. Note that this effort is mostly funded through donations (see the link on the project page).