New schedule is up, and it looks mostly good.
The first thing is that the P numbers are gone. Weekday trips are just plain 500 numbers, Saturdays 1500s, Sundays 2500s. That synchronizes well with the rest of the system.
23 roundtrips, 20 of them to Worcester. The schedule is better balanced throughout the day; there's even halfway decent reverse commute options.
582/583 ditched the Framingham stop and instead make all stops between Ashland and Worcester. 582 is now down to 1:12 total trip time (from 1:23), and it now passes 504 in Newton so it has a clear shot and isn't eating its brake dust. 583's schedule was lengthened from 1:08 to 1:17 with the new stops.
Every train stops at Yawkey. Every single train. it's now a viable Green Line bypass at rush hour. But the trains aren't slower - most have about 5 minutes cut from their schedules. BOS-BBY is now 5 minutes instead of 6 - that may be optimism, or better dispatching.
Newton benefits nicely - they now have a number of new morning outbound and afternoon inbound flag stops.
And, finally, the weekend schedules are clock-facing. All trains go to Worcester, every 2 hours, all day.
They haven't added enough expresses for my taste, and maybe they can't until infrastructure work is done and new cars/locos are in service, but this is a darn good start.