You can file your taxes just as if you were in the US. You can e-file or file by mail.
If you are claiming the Foreign Earned Income Exclusion, you must use TurboTax Deluxe or higher, which it appear you are.
If you no longer have a US bank, you cannot receive a refund via direct deposit from the IRS.
For more information about the taxation of US citizens living abroad, follow this link: Taxpayers
Living Abroad