If the supply of bitcoin halts completely this means demand will surpass supply and then the price will shoot up because people need it but there isn't enough to go around so people who have bitcoins will hold on to them more tightly which will easily drive the price and the value up very high. Simply put, if circulating supply goes to zero, then the price increases.

Till there is a demand for Bitcoin there will be supply for it. No one is going to hold it without a reason. Till date I am sorry to say but this is a harsh truth that we don't have a prominent use of bitcoin as a currency. Everyone (mostly) here is holding bitcoin for the purpose to sell it back when it's price goes up. Now the price target of every individual is a personal choice, no one knows about the highest but at a certain price bitcoin has to be sold and this is how the whole circle works.
I am afraid if it goes like this, bitcoin without a solid use; it's reputation could be damaged lasting to a zero demand for it. I think the bitcoin community should be more curious about it's use as a currency more than what price it gains. Once we see a good use of it then everyone knows that it's price is unstoppable.  

Circulating supply is all of the coins that are currently in circulation, this is different to market supply which is people who are willing and able to sell coins at a certain price. Circulating supply of bitcoin cannot reach 0 but market supply can. If it did then presuming there was an infinite level of market demand then the price would increase until someone had the willingness to sell.

You are talking about scenarios that simply aren't going to happen. There are 21 million bitcoins that will ever exist and theres going to be at least few million bitcoins that are going to be in circulation any time, either on exchanges or being used for purchasing something.

I strongly feel that such a scenario would never arise. As long as there is demand, supply will be there. Miners are doing their job in mining bitcoin while the buyers are shelling out money to buy bitcoin. People still consider BTC a safer investment compared to ALTs.
If, by any means, the supply becomes zero, then price will definitely increase since people would look forward to buy it while it would only be available with the users already holding it.
But, like I mentioned earlier, the scenario you mentioned doesn't look possible at all.

This question is a very futuristic scenario. But as we all know that the lesser the supply the higher the demand it is.
Surely the price of it would increase but its really impossible for the bitcoin holders to just keep it without selling it.
As we all know that a lot of people just keep hodling just to increase it worth. If ever that time comes theres should still be selling and also buyer who would go through just to bought. But to say that theres should be a zero circulation, i think that it would not happen because bitcoin wont get old or be destroyed.

if the supply of bitcoin becomes zero, the possibility of bitcoin price will increase, people must be competing to get bitcoin. but as we know, there are a lot of big players in the field of cryptocurrency, so big businessmen can easily spend big capital to drop the rising bitcoin price by putting a low price in nominal so large that it can affect market price movements.

If the supply gets to zero means there will be no circulation of BTC in he market, if the demand remains constant or increases, the value and the price will be increase up to some ;limit where it will remain constant

Circulating supply cannot decrease so this is a moot question. If it did decrease to zero then there would be no price because there would be no trades happening. Rare alien brains from planet Zyon don't have a price and the reason is because there's no supply of them. IF there was I'm sure they'd fetch a pretty penny.