A week ago, Admiral Vladimir Vysotskiy, the Navy Commander-in-Chief, told journalists that the Navy intends to keep Project 941 Typhoon submarines in service. These submarines were waiting for some kind of decision about their future since at least 2004, then the Navy disbanded the division that held them.
It appears that the Navy plan is to keep the Project 941 submarines, but without ballistic missiles - as cruise missile carriers or in some other role (these options were mentioned some time ago). I'm not sure why the Navy would want to get into the trouble of converting the submarines, but this definitely can be done. Especially since the conversion would not have to involve cutting out the missile compartment as it is required by the START treaty.