Will a DRM-free version be available? If so, where from?

It is impossible to comment with any certainty on this at this time because no complete, publicly releasable build exists yet.

A DRM-free version would have to be presented either through a store, and have to be approved by the store before release.
Since those details are not yet available, there is nothing to be said for the confirmation or denial of a DRM-free version of the game.

Of course we want to make the game available for as many players as possible, and it would be silly to think there’d be no DRM-free version available, but again, those details have not been finalized as of now.

When details are available, they will be shared.