Given how every single comparison I've heard to Cosmic says that Cosmic is better, I am not so sure. It doesn't seem all that popular at all.
Which is a shame because I like it a LOT more than Cosmic.
I have seen quite a lot of feedback from people who prefer this game to Cosmic. If people prefer Cosmic it's generally due to theme or variety (which is partially a result of expansions).
Really it seems like the theme is the tiebreaker in many cases, so it's hard to imagine it not doing well. The real question is whether there is enough relevant stuff worth adding still. Any remaining houses would be a bit of a stretch for fans of the series, as mentioned.