configureing the listener in always on

Hi, Im building a sql 2012  two node always environment for the first time.

There are 2 datacentres A (primary) and B (DR). Both SQL Nodes will be built at A, but there is a Hyper V virtual failover which will copy both nodes to B in the event of a problem.

If I give the listener an IP address at site A will the availability groups be able to failover at site B?

Thanks,

Zoe