I would say the market could certainly get better, but I don't know if I would call it a bubble. If you're hunting for domains that new cryptos are likely to use, the market is expanding. According to
this site, there were a total of 871 ICOs in 2017. So far, in 2018, we already have 674. That means more and more are popping up, and thus you're more likely to hit valuable ones. The amount they've been raising have been on a decline since December though, so the growth may stop or slow abruptly. Services seem to be getting more popular too, but I don't have statistics on those.
But yeah, as Jet Cash said, it's also dependent on your abilities to hunt them.