The implication as I understood it was that these "Galactic Chase" ships were only available under that format and that they'd eventually return and we'd get to chase the Emperor's Shuttle around the Galaxy again. Clearly that was not the intended implication!
I hope that Emperor's Shuttle, and indeed Ebon Hawk, do return as Galactic Chases as I think it's a fun way to get a character or ship and it would be nice to have some things that are only got in certain ways from the norm. But if it is just a different "here's a new thing to collect release event" with no intention of ever putting those ships back on Galactic Chase, then I am less impressed.
