Broadly speaking I agree with that analysis, but it's difficult to have any confidence, things are a lot more complex now than they used to be. Bitcoin is getting a _lot_ of exposure in the mainstream media, and it seems there are multiple overlapping cycles in play. I can see another 20-40% correction in the timescale you suggest, but I can also see the market recovering from it in a couple of weeks and new ATHs being made before Christmas. The rise of the Chinese bitcoin complicates things as it seems there is a partial disconnect between Chinese market sentiment and that of the more traditional (predominantly western) markets. I expect this disconnect will diminish over time as the current madness dies down.
Food for thought: we all know the current global financial system is broken and on life support, what if TPTB are beginning to think of bitcoin as an exit strategy? It seems crazy I know, but some of the news I read suggests it's worth considering.