I think it would be helpful to at least give us an idea of what to expect.
My initial thoughts were that the Galactic Chase was going to be a recurring event, like the "Ghosts of Dathomir" was for Nightsister Spirit & Zombie. It will periodically return and we can spend as many (or few) crystals as desired to earn shards.
But it's also possible that the 3 day "Galactic Chase" event is just a substitute for a marquee event. It appears once, and then after some period the character/ship will be released to shipments, and then eventually become farmable.
Even if they don't have the specific timelines locked down, a general idea would be helpful for planning purposes! My crystal spending for the first shuttle was based on expecting the event to recur monthly like the Ghosts of Dathomir. If I need to spend more crystals because they'll be spread out (or it'll never return), then I need to know so I can appropriately use my crystals.
