Yes, KBKS's HD2 switched to Russian earlier this month. I know nothing about where the service is based or the meaning of the DJ patter, so I don't know if any timely or live content is offered.
I'm sure there's a reason why CC chose to drop The Beat rather than put the Russian service on HD3. (Better fidelity? The audio on the Russian service is pretty clean.)
Wonder if the time is being sold to a third party.
Since HD isn't attracting many listeners, maybe that'll be a trend: brokered HD programming.