Looks interesting. I saw something about the AK-12 last year but honestly kind of shrugged it off since it is hardly the first time I'd heard of the Russian military about to switch rifles. However, this looks a lot more feasible than some others. Trying to remember, there was the AN-94(?) and some other design that both went nowhere.
If the US is just going to keep updating the old Armalite design I don't see why Russia can't do the same. Interesting that from the linked article it seems like they are planning to have it in dual calibers from the start.
"For every problem there is always a solution that is simple, obvious, and wrong." - Mark Twain