without SegWit price is rising to the moon, currently we are close to $3000.
and the demand is strong.
now imagine when SegWit activates and all the things you said come true. no more large backlog, no more higher fees, and no more delays. first thing that will happen is that all the money that went into altcoins will come out with their bubbles bursting. second thing is people who were a bit uncertain will come back and invest. the previous growing demand is also there.
in short if price is not going to $3000 with SegWit it goes to $6000
Being optimistic very much eh? the reason price is increasing like never seen before is because of the banks blocking some of the major exchanges accounts and their clients accounts as well, I predict the price to drop when they solve their issues, and again price being on the move towards $3500/$4500 after segwit is activated.