The TurboTax online editions for 2019 should be available in December 2019. At that time you can start a new 2019 account with the Free edition, using the exact same User ID you used to create the online that you need to access. Upgrade and pay for the Plus edition so you can access all the prior year online tax returns created with that User ID.
You can also get free transcripts of your federal return from the IRS - http://www.irs.gov/Individuals/Get-Transcript
For a fee of $50 you can get a complete federal tax return from the IRS by completing Form 4506 - http://www.irs.gov/pub/irs-pdf/f4506.pdf
