None. When he was at the rookie camp, he said he wants to play in the NHL as soon as possible. Waddell then said the Canes were confident they would sign him. Nothing after that.
re: Canes depth. Canes have 2 RHD that are free agents after next year in Faulk and TVR. By all accounts, the Canes tried to trade Faulk this year but didn't get any offers they liked so I suspect they'll try and move him again this off-season. TVR is a solid bottom pairing guy, but is a free agent after next year as well. Only guy the Canes have remotely close to the NHL on the RHD side in the system is McKeown who is a totally different skill set than Fox. The other guys they have are Fleury (LHD) and Bean (LHD).
Moving Faulk or TVR would easily make room for Fox if that's what they wanted to do.