I have seeing a very strong buying signal across most of the exchangers platforms and I think $5000 is already at hand. Currently bitcoin's price is at $4607 and if we get another serious push again we may break the resistance at$4950 area. I have also See MACD and relatively strength index showing a very strong bullish momentum.
It is highly unlikely to bitcoin to go up that high even if it is sitting to 4500$+. $5000 might be reached by next week if people continues to buy bitcoin to accumulate more for free money after fork but it reaching $5000 to soon at the end of this week won't be healthy for bitcoin. If that happens for sure a dip or dump might occur after fork. Even if that is the case, it really is a good time to buy right now but it is better to hold.