In your views, will wars be ever gone in human history?

No. War has plagued humankind since the dawn of history, and will no doubt remain with us until the end.

This question should be put to two different groups: ordinary people, and politicians or rulers.
You'll get two responses.

The political response is the real danger. As soon as anyone gets into a position of authority, power, influence they seem to revert to the mentality of a bully. "Do as I tell you - or else."
Or even worse, "We don't like the way you live, or the god you worship, so we're going to take over your territory and you'll do as we tell you."
Classic cases in recent times have included Korea, Vietnam, Guatemala, Angola, Kosovo, Afghanistan, Iraq, Syria, Libya and so on.
And then ordinary people must put their lives on the line to boost the power of politicians.

As a general principle, it seems a good idea that the sons of politicians and rulers should all be drafted into the fighting forces whenever the parent(s) declare a war. Not as back-room commanders, but fighting on the front line or in the air or at sea. Maybe that would control their urges to bully the rest of the world.

As long as we, the ordinary people, keep putting these bullies into positions of authority, then wars will continue.

If we have just three days to live, we might say, "Just three more days before the world ends, so let's not waste time. Let's fight our remaining wars before it all ends." Yes, we are THAT incorrigible.

No. We are programed to be territorial and also for the fittest of us to survive. Therefore we will fight to keep our territory and to have more, and be better than those tribes in the territories around us. We can adopt a thin veil of civilization, and some of us will mean it for a while, but as soon as our well-being or that of our loved ones, is threatened, we revert to our master program and fight.