Habanos is late this year in announcing dates for next February's festival. Usually there is news out in August. Still nothing public yet for next year.
Be careful of Cuba travel/tour websites, they usually put out offers early and, as often as not, get the dates wrong, as some have this year.
I was just talking with a Habanos distributor and the dates they have are 24-28 February, 2020.
I know, in some parts of the world, it's useful to start booking travel arrangements about now.