Wasn't it the case that we got acces to the CM4 due to the fact that we bought 'Horizons' as pre-purchase?
Obviously, I don't know what FDev's future plans are regarding their expansions. But D. Braven answered in one of the AMA events that, even if they went the "small DLC road", there would be a solution for loyal fans willing to purchase a whole "season" for a reduced price. I wouldn't mind, if the CM4 would be part of this special offer again, just as it was already.
Regarding the ship itself: I own it and I like it. However, I don't fly it any more due to the fact that the more expensive ships fill its role better.
The ship definitely would be an interesting alternative, if FDev would introduce a game mechanic
that favors small ships.
For example only small landing pads on mega ships (is this the case already? I haven't visited one so far ...

).
Or small landing pads on the new space structures.
Or new tender ships (repair and re-arm) in conflict zones for small ships.
Or missions that requires the use of certain ships.
...
There are so many possibilities!
