everybody wants bitcoin go in 5000 dollars, i hope so that will happen in the end of october or 1st week of november so all of us are happy if that happen,

It is a normal thing for anyone to hope for the best. However, from the look of things, the possibility of hitting a $5000 even this week is really getting more feasible by the day. Presently, it is trading at the rate of $4800 even though we know so many people are really dumping their coins for BTC but all the same we still hope it gets better. Although, there is a possibility of still having a little correction maybe after the first fork, but no one knows.
Yes, it is happening right now. If the first fork happens as expected and people get their free coins, most people will dump the free coin fast for Bitcoin which will make the value even increase further. The only little comma now is the fork after that and how people are going to respond to it. But we still never know, as the community is full of surprises.
I guess in this October we may see prices to test even $6000 levels as trading volume in most of the exchanges are looking very much promising.
It's posible because another Hardfork is near it's posible for them to sell their coins and put it down into altcoins for extra safety measurement for their Money
(panic sellers) I would prefer to stack some BTC if that happens
This is possible. If the first fork happens as expected and people get their free coins, most people will dump the free coin fast for Bitcoin which will make the value even increase further. The only little comma now is the fork after that and how people are going to respond to it. But we still never know, as the community is full of surprises.