The above implements layer 3 routing in the core layer. VTP is a layer two protocol, therefore each switch block connecting to the core has its on VTP domain? or can the VTP domain span all switch blocks over the routed core?
If each switch block is routed then yes your normal routing protocol will allwo you to communicate between switch blocks.
If you mean management you could either create a management vlan within each switch block and propogate via your IGP or you could just use loopbacks.
Hope i've understood the question.