Bitcoin nowadays are go to falling down.
How much Drops can be?
About 3000 usd.
I also hear it can be less than 2500 usd. Or can touch 2000 usd. No more links, just hear news some of my friends.
Any idea or source to know better?
Somewhere between 0$ and 5000000$ give or take.
Really, what's up with these questions? You are either part of those that wants to manipulate the market, either you should seriously get into consideration the other answer you've got.
You are asking exactly the kind of question that tells me you shouldn't be anywhere near bitcoin.