Spellbinder wizard archetype: a couple of questions

[yeti1069]

1) The language for the ability doesn't specify whether you cast the spell with the expended full-round action, or whether you merely replace one prepared spell with another.

2) Can metamagics be applied to the new spell? Is this dependent upon the answer to #1?

[Elamdri]

You are using a full round action to replace a prepared spell. You are not actually casting the spell with the action. You can apply metamagic to the new spell as normal.