Bitcoin's volatility has been steadily decreasing over time, which means huge price movements upwards are less likely than ever. Sorry it's not going to happen. I think 5000-6000 range is the correct or fair price, so selling at the higher end of this range would bring profit at least and then I think alt coins start making more sense at that point
I think at this point we can have bitcoin price from the average of $6000, but there is a possibility that bitcoin will reach up to over $7000 by the end of the year. Look at the bitcoin price right now? It's already increasing again since yesterday so I think it will continue to rise until December.