Based on daily chart analysis we are likely to see roughly 6 months of range then a break of the $1150 giving us $1430 -$1490 target .
If the trend continues we would likely retest the previous high say $1490 range for 6 months  before a break to say $1780 ish ,retest previous high $1780, range  6 months then break to $2070 ish.
So based on the only evidence we possess which is current daily/weekly charts and not taking into account any fundamentals The earliest we can expect $2000 to be broke is 18 months.
That is based on the current trend .
Based of of the break of The 2013 high of $260 to $1163 we could see $4000 plus within 8 months but I wont be holding my breath for this event .