Yeah, not sure about the longevity of it. I enjoy the game but I feel like it's going to be more of a flavor of the month shooter vs a long-lasting one. I have played with people that have played at a pretty high skill level in other games (cs/tf2/quake) and I do think that high level play in this game will be intense and have far more strategy than what is believed to be the current meta. I really look forward to it but like others said, the game is going to rely completely on the community more than the devs it feels. The maps all have decent layouts so I don't think that will ever be an issue.
Give us at least a map maker and I feel it will be around for much longer, because god knows modding communities are the reason most popular FPS games are still alive today.