It's from ages ago! I wonder if the reviewers asked for some extra work? Having an MS (or similar) control group would be an obvious improvement.
edit: Or is it not unusual to have this sort of delay?
edit: Or is it not unusual to have this sort of delay?
On some journal sites, they have a separate section for "pre-publication articles" (not sure that is the exact wording for any of them but that sort of idea). I think very occasionally I have seen an article that was over 12 months there (they are often sorted by date) and I have wondered why it was taking so long.