I don't think there will be a way to upload videos to the blockchain which powers steemit, but I DO think people will upload videos to YouTube and then come here and EMBED their video and write a few paragraphs about it. Then we can up vote it and discuss it, here. Let's see what others think about this. Good post, and welcome to steemit!
Thanks. People posting their videos on youtube will be "free and more advertisement" for youtube lol. I feel if there's a way to incorporate videos on the blockchain, like say with the Alexandra project/ Florin project, that will bring more attention to blockchain technology and crypto as a whole. It will help Steemit greatly too. I'm sure it's something the Steemit developers are thinking of.