Reading the linked press release at the start of the thread, it seems obvious that it should be branded as Alaska. All other SF Giants promotions mentioned for next year in that release specifically mention Alaska, they are naming a level of the stadium the "Alaska Airlines Club Level," etc. It would seem odd to muddy that sponsorship by branding the plane with a company name that is going away in a few years.
In that case you would have the brand muddied by having Chester on the tail with everything about the passenger experience being Virgin America.
They've already stated they have zero problem with a muddy passenger experience, and looking at their current offering it's not difficult to see why, because it's already quite inconsistent. They will be marketing flights as Alaska sold on Alaska's website and the first indication you're on a Virgin America flight will be when you show up at the gate and are greeted by a VX airbus.
Unless there is a union issue involved in adding Alaska name/tail might mean Alaska crews that are not trained yet. Anyone know if this would be an issue?
No issue. AA, DL and UA painted the former US, NW and CO planes very quickly and far before they were operating as one airline. I would expect to see Alaska branded airbus very soon, even before interiors are ripped out and downgraded to the Alaska spec. The crews won't mix until crew training is complete at the beginning of 2019 at the earliest, but that has no impact on brand changes in the meantime. Expect to see plenty of changes before then and I can imagine the VX brand will be all but gone this time next year. They want to erase it as quickly as possible.
Great paint scheme.
What scheme? It is literally an all-white plane with a giants logo and some bridge clip-art cut-and-pasted in the middle. With 10 minutes and a copy of MS Paint any middle-schooler could do as much. Why even bother to unveil this incomplete scheme without any sort of branding whatsoever? Another confusing move by a very disoriented AS marketing team that seems to have no idea how to handle the VX integration. They seem to be just throwing everything at the wall to see what sticks.