Three and a half years ago one user asked the following:
The other day I was looking at the stackoverflow site on my Android mobile phone. All is made very nice and all, but I could not find the Review button/link. Is it being implemented, did I miss it, or it is not available?
To which a developer responded:
We currently do not have a mobile version of review. You can visit review on a mobile device however it will not be optimized for a mobile device. We have a longer term goal of making a mobile version.
In the meantime many have come back and asked for the review queue to be added, resulting in those questions being (correctly) closed as duplicates. My only question here was exactly that, which I asked on biology meta and got migrated here. However, given that over three years have passed since producing the mobile version of the review queue was described as a "longer term goal" of stack exchange, I think it is reasonable to ask the question; when is the mobile review queue coming (can they give a target date)? Are SE still even planning on making it available?
Note, I don't think this can be considered a duplicate of the linked question. Here I am asking whether SE still plan on introducing the feature and for specific detail of when. The linked question and answer are old posts (so the situation could reasonably be different now - e.g. SE may have abandoned the plans) and the answer only gives a vague timeline.