it is all going to be about the supply and demand. the demand was high enough that it was able to keep the price at this level for a long time. and in the future if this doesn't change and also goes higher, and additionally none of the whales decide to dump a sudden big amount on the market I think the price can easily start going up to > $300 and higher from there on.
The trouble is the demand for coins isnt really that high at the moment. Hopefully there will be some good news before the halving which will get bitcoin some mainstream attention but without it I don't think bitcoin will rise much.