Safe netwerk is a nice project and i also expect a good result and a bright future. The other alt coins i have my doubt, i think many alt coins will disappear because their functions will be implemented in Bitcoin via updates, side chains or apps on top of them. Bitcoin has already a way bigger infrastructure and the best programmers. This year the lightning network, Counterparty and Rootstock are expected and this will make many alt coins useless. Steemit did very well by growing so explosive in a short periode, so i think they will win the race against a future Bitcoin based social media platform because of the network effect.