I now believe that the only way we can have a new bubble is through a new Macroeconomic event that makes Bitcoin very useful. Also, I think we have to solve some scaling issues in order to be used by the general public.
The price kept increasing all the way to nearly $800 in quite a short time due to the block halving last month. Wasn't that enough? And just out of interest, what kind of bubble were you expecting, and how high was your target price? The block halving is just a simple happening where the rewards fall down with 50% and that's it. In a matter of months the price nearly doubled in value, so everything went fine. Lower block rewards are nearly fully compensated with a higher price.
I would consider a "bubble" only if we pass ATH significantly.
I don't have a target price, I'm here for the long run, even if we pass ATH I would probably HODL for some more years.