No one can give you assurance or guarantee you of coming of bull seasons. Is better you make a deep research and market studies to make a good decision. However, base on trends history, the last four months has always been good in cryptocurrency especially last year 2017. So be sure of decisions you want to make.
You are totally right. I think it's possibe to see same bullish trend this autumn. First of all SEC didn't reject the ETF, that is a good sign. Secondly I think the growth of Ripple is a first step to a new uptrend.