As weird as I may seem I think you are all looking at this too pessimisticly. DarkHorse as a company will be perfectly fine. They make much more than just comics and just finished their most succsussful year ever do to licensing and selling of two of their comic plot lines to be made into video games. As a company they have nothing to worry about.
As far as the comics go marvel is a skilled comic company and has actually been in the business of comics longer than darkhorse. They have some of the most skilled artist and writers. I woulden't worry too much about the future of starwars comics the one thing you can worry about though is comics that you follow now not getting the ending you hoped for.
Current WIP: Learning to mod Kotor