Tom: I'm glad to learn of your interest in Seashore, are you a member? I recommend weekends as the time to show up. This is when a lot of the non-routine stuff goes on, even if there isn't an event. It's also when a lot of folks are around who can make stuff happen that may not have been scheduled (a trip with subway cars, for example). We never have a problem putting our work aside to show around an interested guest!
The PCCs that Seashore is looking to sell were acquired by the Museum as extra equipment to serve various purposes whether it be for storage, part sources, or for sale. The cars you listed (that you did not see for sale) are part of the collection and are certainly not leaving Seashore. If you were concerned that parts of the collection were being sold off, rest assured, that is not the case.
When was your last visit? We have gotten quite a bit, it sometimes seems like the floodgates are stuck in the open position. That's another treat that goes along with being involved up there is that there's always something new. As for PCCs in service, Philadelphia's 2709 is unfortunately all we've got at the present. There has been some talk amongst parties up there about 3127s revival. A lot was done this past summer to see what it needed, and as it turns out it needs quite a bit, although it's definitely not beyond repair, I can go more into that in a PM if you're interested. Also, as Doug mentioned, a lot has been going on with 1304, and the progress made on that car this year has been impressive. Originally, the intent was to restore the car as a static display with the idea of making it runnable more of a pipe dream, but a thought none-the-less. Thanks to some of the incredible skill we've got with us, the chances of the car running seem to be increasing quite rapidly. When you visit, see if you can find someone who can give you a look at the progress there, it is a gorgeous car.
Regarding the Trackless Trolleys, work is continuing in the bus yard part of which will become the second trackless loop. They generally do not operate outside of special events currently (except when the Swiss group is around, as Doug mentioned), however this is expected to change within the next couple to few years. More wire is likely to be put up this spring, although I'm not sure to what extent the project will be completed.
Moderator: Massachusetts Bay Transportation Authority, Brightline Trains
Avatar:3679A (since wrecked)/3623B (now in service as 3636B).