I'd like to think they were working on it but my gut feel is they are not working on it and just shelving the review process for some reason. Maybe that reason is they're overloaded ... maybe it's that they are understaffed ... whatever the reason it would be good to answer the question of what's going on even if it was a general post somewhere. Basically they are doing nothing visible for months and months.
It's very frustrating to get no response from them ... or even the OP of this string ... and if you do get an email response it's a canned answer to a link that has no bearing on the problem.
Of course I'm basically venting here ... because even posting this feels like a waste of time other than to just vent.