I don't see much difference between second half on 2018 and start of 2019. Nothing interesting around Bitcoin, Ether and Ripple. Nothing interspersing around alts either, they continue to die. My expectations are that the whole year will be like that.
When I look at some altcoin charts like LTC, I'm quite reminded of 2015. It feels like we're seeing the start of an accumulation schematic. One of my sleepers (Komodo) shows it even stronger.
there has never been anything interesting about ripple and the only interesting thing about ethereum was the idea which all the interest ended there in the "idea" stage.
Ripple is crap but Ethereum? Tokenized fundraising in a permissionless context was pretty groundbreaking. (ICOs may be rife with scams but so is the startup space in general. Nothing to do with Ethereum there) Ethereum brought us the first well-functioning DEX platforms too. I don't like Ethereum's general design (so bloaty) and sometimes I wonder about centralization of governance but I have to give those guys some credit for building something novel and useful and frankly pretty cool.