If HitBTC wanted to, I believe they would've done so long ago. Plus, taking into account DOGE's price surge makes it even harder to believe it's gonna happen.

I'm not sure about being delisted but CMC and coingecko do put out notice when they receive loads of complaints. Then again, it's been several years since they started being scummy and no notice has happened yet. On one hand, perhaps the huge loss of userbase has contributed as well + many folks just moving on and charging it to experience.