There aren’t any more details about the release schedule yet, including whether Disney will follow the same track it did for season one by debuting episodes weekly instead of making all of them available at once. You can probably expect at least one trailer before the premiere date to whet your appetite for more bounty-hunting (or Child-protecting) adventures.
By the time The Mandalorian returns, it could be a multiple Emmy-winning show. It received 15 Emmy nominations this year, including one for Outstanding Drama Series. You can find out whether it wins that prize when the Primetime Emmy Awards ceremony takes place on September 20th.