We are working fulltime on the Windows version of Texpad, and we are making great progress, but we do not have a release date to announce yet. We never announce release dates for projects until they are ready. Large projects like the Windows port of Texpad can be delayed unexpectedly by issues, and announcing a public release date can only lead to pressure on us to release before it is ready.
If you wish to sign up for the beta, please create a Texpad account, and opt-in here. Similarly for the beta we do not have a release date, and we’ll be in touch when it is ready. We generally phase betas to avoid overload, and not everyone will receive the beta at precisely the same time.