The thing that sucks about them is I don't think they can take time off or they'll lose their momentum and it might be hard to get back. Let's say they take a year off like most artist do, it'll be difficult to regain that just look at Travis Porter and they didn't even reach the level Rae Sremmurd did. But if they keep going they risk oversaturation, getting burned out, loss of creativity and staleness. The future looks bleak for them for sure. The "fanbase" they've cultivated is the worst kind for longevity.