Hi, finally, we have the Letux kernel 4.9 available.
As usual there is a tweet (to forward :):
https://twitter.com/goldelico/status/808329828202123264
and sources / binaries (standard and LPAE) can be found here:
http://projects.goldelico.com/p/gta04-kernel/
Please test and report bugs or submit patches.
BR, Nikolaus