Total shame, really. ED could easily be a long-running game but, as things stand, the day a decent spaceship game comes along and ticks the right boxes, ED is done.
...any decade now.
ED is now in its sixth post-release year, still making Frontier a decent income, and its closest unreleased competitors that are known of are a game that's been in extended development for even longer than ED has with no sign of being anywhere near release soon, and a game which is taking a much more PvP-focused line (to the point where its current alpha doesn't have NPCs at all) and is again well behind its initial planned schedule. And every year, of course, ED also improves - there's still lots of it which is unsatisfying and really needs some extra work, but compared with how it was in the 1.0 release? No contest.
Would it be great if the mythical "company which was both able to get a game out the door
and could make endlessly compelling space gameplay" came along with a competitor? Yes. Is there any sign that it's going to happen? No. I'm more optimistic for Frontier adding extra features to CQC than I am for that happening...
(That sort of competition would be good for ED, too - at the moment it's as if there is exactly one FPS which has to appeal to Doom-like ludicrous weapon fans, Rainbow Six tactical "realism" fans, and people who just want to be able to walk around a simulated terraformed mars without being shot at. Having multiple games in the genre would let them all specialise a bit more, and be better at what they're good at with fewer compromises)