I don't expect anything above 400 billion as market cap anytime soon. The market is stabilising, people that jumped the train 2017 with the hype are quitting leaving the real crypto enthusiasts and visionaries to remain. And they hold!

My opinion goes with EOS, Cardano and Neo as promising alt coins with serious platforms and high potential to develop into something large. 

I say be realistic... market will stabilize and as much as many people want this we will not see an 800 billion market unless some serious steps are made for adoption of the blockchain by corporations and banking entities. The hype has faded away, but in the long run we will see actual adoption and drastic spikes in the prices, but not this month... make that differences between what you want and what is actually foreseeable given the current conditions. Have patience.

I see no more than several strong coins in the longrun, the craze will fade out and eventually cryptocurrencies will be regulated and adopted. Whatever the case, we are in for some very interesting times.

In all honesty, I am very confident in the bright future of altcoins, however lets be realistic that we cannot expect a 800 billion market anytime soon. It will move up and down "stabilising" in 250-350 billion is my prediction for the upcoming months.