Copy + Pasting @JeffAtwood's answer:
edit: we DO provide feedback on migrations to people answering via topbar notification
The unsubmitted answer would still be saved as a draft, since we auto-save drafts for questions and answers every 45 seconds.
However, I'm not 100% sure the draft would be visible when you came back to that answer. Normally it would be, but since we suppress the answer editing area on migrated / closed / otherwise functionally unanswerable questions.. might not be in that case.
