Quoting from this thread
Copyedit: the game is being copyedited in full; that process can take about a month.
Pending release: we’re waiting to release the game
Pending assets: we’re waiting for the author to give us something we need to publish it
Pending Submission: we have the assets, but there are still internal production tasks to do before submitting.
Submitted to Apple: we’re waiting for Apple to approve it.
Pending external approval: we’re waiting for someone to do something
If you see the list of titles to be release this year, they have other titles to check with as well so we have to patience since CoG is a small company.