The works go on until November. They're taking pairs of platforms in 6 week blocks but are generally finishing early making all platforms available for a period of time before they take the next pair.
Right, thanks for that. I'd assumed that the next pair would close immediately after the previous pair re-opened, but - as you say - that's not how it's being done. I expect there are good reasons for doing it this way.
I'm still a bit peeved that Nottingham lost half its Birmingham services for such a long time, I get the impression that this particular route suffered more than others; I know the remaining Nottingham services are often lengthened to compensate but it makes some previously good connections very poor.
If the final platform closures are completed in early November I hope they'll reinstate the extra services as STP sooner than the scheduled date which currently seems to be at the timetable change (10th December).