Well, the April spike saw a circa 25x increase in bitcoin's price while the last spike only had an 18x rise so the next wave up should increase by a smaller degree. I would guess no more than 10x if we have now bottomed so we'd be looking at a max of $4000.
I'd say max 2500-3000.
Yes, I'm more conservative and would even say 1000-1500.
Truth is Bitcoin can surprise you either way. It's likely to be a wild ride for the next five years, and I'm not sure where the price will stabilize.
I think the main question is value. In terms of the remittance market, where it might make its first significant mark, it should stabilize at 2000 or so within two years just based on that.
In the near term >=6 months, I see a VC run in concert with some good apps and simple tech solutions taking us to that 1500-2000 mark.
But I think it's going to take longer for this to gain mass adoption.
What we have is a paradigm shift. Before now, we didn't have a way to give strangers money without the (tacit or not) need of a human actor / human-driven entity at some point needing to be involved. Math is doing that now, and we can put more faith in it, and at an order of magnitude more cheaply so.
With respect to paradigmatic shift, the problem we have is that the financial industry and the world at-large are trying to understand BTC through a lens that doesn't really register its true potential or or if it does, distorts its image. I really would invoke Kuhn (1962-The Structure of Scientific Revolutions) in this context: "it is not possible to understand one paradigm through the conceptual framework and terminology of another rival paradigm". Clearly, that's what's happening here.
Intervening in the normal course of the paradigm shift are the oil smudges of corruption, greed, and power brokering/jostling on our collective prosaic lens, if you will: Gox, rampant and manipulative speculation, etc. Therefore, everybody is just a little scared of the technology and that fear leads most of them to not want to try and understand it. The fear results in more time to adoption.
Anyway, in the background, all the keyed in people are investing time, effort, and money into all sorts of BTC-related stuff because they (rightly IMO) believe in the underlying technology, and they know that the fearful will become fanciful once it works as easily and smoothly as their iPhone. These are the same types of people now as those who pulled up their sleeves and wiped their brows in the 90s with internet, yes--even though this is a tired comparison by now.
So many people are focussed on the value of BTC, and ironically, they don't yet see it.