I think the total market cap will be around $1 trillion by the end of the year with btc being around $25k to $30k. I think a lot of people at the start of Jan when everything was on a bull run predicted we would be at $3 trillion by the end of the year but I don't think that will be attainable this year in 2018. We are still in a bear market and I'm not sure how long this will last.