Bitcoin advertisement or promotion by celebrities are always good to make people interested in bitcoin but the most important thing is the acceptance by governments or everything that will ease people to use bitcoin. Today there are many countries start to accept bitcoin, if government accept bitcoin then bitcoin related company will grow easier. I think the news that we need is bitcoin acceptance by governments.
For now it seems a bit difficult to see Bitcoin can be legalized by the government as a means of payment,
and if I see the development of Bitcoin so far I am really satisfied,
apart from that, all promotions carried out by celebrities or famous people are very influential and have a big enough impact