Well it depends!
Unfortynately most answers on subjects like this start that way. It depends on what your disaster recovery plans are?
It sounds from your description that you have implemented SCR WITHIN your “datacentre”, and if so you need to have a plan about what will happen if you lose either both ends of the SCR or the entire datacentre.
You can use Exchange with CCR and SCR concurrently and replicate to a remote disaster recovery site.