Once your return has been accepted, TurboTax does not get any more information regarding the processing of your return and refund. Only the IRS (& state if any) can tell you when your refund will be issued. You can keep checking the IRS website, Where’s my Refund. The website updates once a day.
https://www.irs.gov/refunds
If you have a State refund, you can check your States website for refund information.