This is the current way of configuring a single route:

'foo' => array(
    'route' => 'foo',
    'type' => 'Zend\Controller\Router\Route\StaticRoute',
    'defaults' => array(
        'action' => 'index',
    ),
),

Because 99% of people will only use the basic route types (Static, Regex, Hostname, etc.) there is no need to enforce supplying the whole class name. As 2.0 is 5.3+, then we already have namespaces for that and we can educate people to use short class names.

My suggestion is to allow this:

'foo' => array(
    'route' => 'foo',
    'type' => 'StaticRoute',  // class name in Zend\Controller\Router\Route namespace
    'defaults' => array(
        'action' => 'index',
    ),
),