Ethnic conflict probably always has existed and probably always will exist, at least into the foreseeable future. Humans seem to have a special talent for killing each other in great numbers because of perceived ethnic differences, even when those differences are not especially obvious to "outsiders." I'm not aware of any animal species in which different groups slaughter each other with such ruthlessness and efficiency, although apparently fighting between groups does take place among some of the higher primates. I suspect it would be unduly optimistic to assume that ethnic conflict will ever end under the circumstances that presently exist or are likely to exist in the near future. (Some people have speculated, of course, that nothing would unite human beings more quickly than the prospect of alien invasion, but don't count on that happening anytime soon, either! :-) ).
I would have to disagree partly with #8. There appear to be many other root causes to the current rioting that is sweeping through Britain at the moment, and certainly ethnic conflict is one of the reasons, but let us not forget that the current Tory government have just presided over the biggest cuts for a long time, and there is certainly plenty of frustration regarding this.
I personally hope that as globalisation continues, ethnic conflict will decrease, but part of me wonders whether this is naive optimism. Globalisation in some ways seems to be highlighting the differences between different groups rather than producing one happy global village where we all hug each other.
What is happening in London (the rioting, burning, attacks upon people) is greatly connected to ethnic/religious conflict. The repercussions of this disaster may easily spread throughout Europe. Whenever countries have been invaded by other ethnic groups or when borders have been altered as with Israel/Palestine, there is usually ethnic conflict.
I have often pondered over this and I truly believe that ethnic conflict will decrease while social conflict will go on the rise. Ethnic conflict may easily disappear once it is uncovered and exposed. Yet, some cultures will never find a way to get along. I really do not see an end between the fights of Indians and Pakistanis, between German and Turkish people, nor between Israelites and Palestinians.
Social conflict, however, will rise from many areas such as economics, political affiliation, religious preference, sexual orientation, and much more. Hence, to compare between the two, I think social conflict will keep us busy enough to worry about ethnic conflict in the same intense way.
Ethnic conflict is becoming less prevalent, but it will take centuries for it to go away (if it ever does). There has been blurring of ethnic lines to the extent that some ethnic differences that were once salient (between different white ethnicities in the US, for example) no longer are salient. However, there are many more ethnic conflicts that are still very much alive. The process is a slow one and there will continue to be ethnic conflict until/unless more groups of people come to see (as "white ethnics" did in the US) that they have more traits that are similar than are different.
Ethnic conflict is nothing new, and it's hard to believe that it is not going to continue for the indefinite future. In heavily blended societies like the United States, its easy to talk about "post-racial" as an ideal, but in any number of countries, ethnicity is still a source of tension and conflict. As long as there are tribal societies in the same national boundaries, as long as there is emigration and immigration and as long as we have ignorance and demagogues, we will have ethnic conflict. I hope I am wrong.
I think that the nature of the question is going to have to be limited. Some level of specificity is needed n the question. It seems like there is a wide open element of the question. At the same time, it is difficult to project into the future without any real basis other than the present. With this in mind, should the basic elements of ethnic conflict that exists today continue on, I believe that there will be a continuation of the ethnic conflicts that are evident today. I think that the issue of the Palestinian territories will continue to be present, unless there is some intense recognizing of the other's predicament. At the same time, it does not seem that the conflict in Sri Lanka between the Tamil Tigers and the Sri Lankan government will be subsiding. This seems like it will continue, if nothing else because neither side has shown a real sense of courage to change. The similar inertia is present in how India and Pakistan do not seem able to find common ground on border security and overall health in their political and ethnic relationship is still a challenge. This is highly evident in the situation between both nations regarding the Jammu- Kashmir territory. I think that these ethnic conflicts have a very strong change of continuing without much in way of change if the current predicament does not experience some level of seismic shift or change.