In the meantime, I'll make a different, more sadistic "would you rather".
Alright, would you rather the DKC series continue, but Nintendo does another reboot and only DK and Diddy Kong come back (the games themselves are still great, though, they don't New Super Mario Bros. it) and Dixie Kong never becomes being playable in Smash?
Or, would you rather the DKC series just dies, Tropical Freeze is retroactively the last game in the series, it NEVER comes back, BUT Smash immortalizes the series by including Dixie Kong as a semi-clone / unique fighter (whichever you prefer), keeping K. Rool, and adding a couple of new DK stages and a bunch of music from the whole series like DK 64 / DKC3 / Tropical Freeze, plus more remixes that aren't the opening theme / DK Island Swing? Cranky Kong becomes an Assist Trophy and emulates Resetti from Brawl by clouding the screen with "Back in MY day" text boxes, and Funky Kong becomes an Echo Fighter.
In one scenario, DKC lives on and remains fun, but never includes anyone other than who Nintendo already seems to think is important and Smash never has any motivation to add Dixie Kong as a result. In the other scenario, no more DKC games ever get made, but Smash keeps the spirit of the series alive with one last big sendoff.