I think altcoins bull are precisely exist, just a matter of time because bitcoin has totally develope even in a gradual way and altcoins wil surely follow on bitcoin's growth. And hopefully it will continue to grow beyond on what we have desire.
some altcoins have started to rise. even ethereum is now also experiencing a slight increase. not the most important problem is still in an uptrend. I think bull will come soon for altcoin, but before that maybe we should wait for bitcoin to experience a big pump first.
Bitcoin has been in the bull run but it looks like it won't be enough for altcoins to follow the trend it has right now. Some altcoins still sleeping and even known altcoins aren't be moving fast just like what Bitcoin does. It may be and so hopeful that there us a surprise in the 3rd quarter which makes change the trend and helping altcoins to move higher.