Ethereum has been overtaken by EOS and Cardano in terms of technology so it is likely that they will overtake in the market cap as well in due course. Ethereum is still the ICO king, but not at the current rate of development
I would say that cardano is just an over hyped project ...everywhere I go I hear about cardano but when I ask people what is Cardano they reply with " I don't know , just saw a bunch of videos on youtube and reddit is on fire also with cardano so I bought too" ..this are the guys who are promoting cardano right now...I don't say that they don't have good tech team but people are buying it in a full blindness...