I agree that BTC will be very bearish in the coming days and will probably consolidate at around $700-800

But I disagree on the fact that altcoins would drop. In fact, I see some altcoins being pumped due to money coming to them!

Altcoins are stronger than before and some of them are currently strong enough to be independent regardless of what happens to BTC.

If BTC does not implement segwit, I suspect another coin to dominate the cryptoworld in the coming years. BTC fees are very high, with a slow and congested network that cannot survive, especially incredible technologies that some alts have.