Last week bitcoin try to break $4500 about three times but to no avail! I think above $4500 is possible before the end August as the momentum is very high and bitcoin Cash has rise significant for the past two day to close at $870 yesterday, I think very soon bitcoin Cash traders will start to take profit and fund will flow back to bitcoin.
Nobody really knows, but there are predictions of Bitcoin reaching $5,000 this year and Ethereum hitting $1,000. At least in the case of Bitcoin, that record value is in sight. For Ethereum, things are a bit more complicated, seeing as it didn't rise all that much since hitting the $300 mark again recently. Regardless, it will be very interesting to watch how things develop.