Sorry if this was addressed but why doesn't the plan or plans have the train continuing to San Francisco from Didiron (SJ), instead of heading to the East Bay? The market for an overnight train to LA would be greatest in SF I would think. Or split the train at San Jose?
Well, one thing that is pretty clear in this thread is that there really are no official plans for an overnight Northern California-Southern California overnight train. There is just speculation here about what such a service might look like.
The key issue in my mind on San Francisco versus East Bay is whether such a service would extend to Sacramento or even further or not. The "Spirit of California" was an LA-Sacramento train, and so had to go via the East Bay. There was a fairly serious proposal a number of years ago to extend the California Zephyr to Los Angeles via the Coast Line overnight with a third night, which also would have had to go via the East Bay.
As opposed to the speculation here, there have been on and off proposals at CalTrans to extend the morning/evening Surfliner to SLO to San Francisco (
not Oakland/Emeryville) as a "Coast Daylight". At one point some historian at CalTrans or Amtrak had those morning north/evening south trains to SLO numbered 798/799 in anticipation of extending it. They've since been renumbered. I don't know the status of that proposal currently, I think it is back in the freezer.
My opinion is if the destination is the Bay Area, it ought to serve San Francisco. If Sacramento, or points north or east, the East Bay. I will say the single time I rode the Spirit of California, probably 80% of the passengers onboard at Oakland detrained there. Personally, I think with the frequency of the Capitol Corridor, there is no need to extend an overnight train to Sacramento. I think a good connections to the Capitol Corridor at San Jose for such a train would work fine.
I'll also take this opportunity to shill for one of my fonder fantasies, a second LA-Seattle train roughly 12 hours off from the Starlight.