I am just responding to the OP, who is asking which topics do we think are hot in crypto in the year 2019. That announcement coming from the president of China himself was indeed hot. The president did not mention Bitcoin. He did not even mention cryptocurrency, if I am not mistaken. But still it made the headlines of crypto publications. That is not something to wonder because many crypto publications are writing in their headlines news that are not really news worthy. They are writing articles that are written for the sake of having something to publish.
Rather he emphasized on blockchain adoption. This news not only became headline of crypto network but also took price of bitcoin to 12000 $. Such things are not good for bitcoin as it will give more strength to idea that bitcoin is purely on speculations.