The team has announced via social media it will hold a virtual launch on March 2.
Alonso's return to the F1 grid hit a hurdle earlier this month, when he was hospitalised after a cycling accident in Switzerland.
The 39-year-old has since been discharged, with the team confirming this week, “he will now have a short period of complete rest before progressively resuming training to undertake preparation for the start of the season.”
Alpine/Renault finished fifth in the 2020 teams' championship.
The Enstone organisation will enter the new season with ex-Suzuki MotoGP boss Davide Brivio taking the role of racing director, and without long-time team principal Cyril Abiteboul, who departed the squad last month.
The opening race of the 2021 season will take place at Bahrain on March 26-28.