They have to minimally support the 3.8 codebase anyway so long as the game is playable on XBox/PS4, so continuing to make it available on PC too probably isn't that much extra effort for them. Mac lasted about three years between the announcement it wasn't getting further development and the announcement it wasn't getting a usable client at all, and I wouldn't be surprised if they're thinking of similar timescales for 3.8. By late 2025, Odyssey's (real!) minimum requirements are going to be pretty widely available - the chance of someone new buying Elite on PC who can't also run 4.0 is pretty small.
Does also depend what their longer-term plans for Elite Dangerous are in terms of type and frequency of release, which I wouldn't expect them to say anything about until they've at least mostly finished the current roadmap anyway.
Does also depend what their longer-term plans for Elite Dangerous are in terms of type and frequency of release, which I wouldn't expect them to say anything about until they've at least mostly finished the current roadmap anyway.