I think after halving the trading will be more beneficial and more people will be involved in bitcoin trading , as at that time everyone will sell and buy bitcoin on large scale so there will be a large profit in trading.
I also think that after halving a large number of people will buy and sell bitcoin so every exchange will be more efficient and within a day a trader will earn a bigger amount of profit and will be millionaire sooner.
Now that is very optimistic "millionaire", good for you!
IMHO, only due to the halving, other factors aside, the price will stabilize somewhere in the 700 to 800 USD range.
This will allow the miners to be profitable, which sustains the blockchain and allows our transactions to keep flowing.
I also think it is not out of the realm of reality to think some of the larger miners are playing a role in the rise we are currently seeing.There are enough of 'visible' events causing bitcoin price to go high already.
Claiming that there is hidden agenda of miners which behind our back are pumping price like crazy is a bit too much.
Bitcoin is undervalued as crazy, people started to realize that. Miners don't have to do anything.
I am not saying it's a hidden agenda, or that I am right about it.
It just makes sense to me, large miners are about profit. The halving has the greatest direct impact to mining profitability, cutting it in half instantly. I am sure they think about it.
Now it is true that I am an infrastructure kinda thinker and I am too simple minded to understand everything that is moving BTC but, I do understand profit preservation.
I really hope the rise we are seeing is not only about the mining profitability and other factors are more important and this is more about the markets being behind the current perceived value.
EDIT: Some Grammar errors, I need to check first and not post right after I wake up.
everyone is being too optimistic to the upcoming halving. I hope they would not be disappointed after it. 
