5 crossovers I want to see in fighting games

The fighting game genre is filled with many crossovers. Characters from popular and iconic game series are often pitted against one another in exciting and interesting mashups that get fans very excited. Some of the best fighting game experiences have come from this, and have even led to the creation of new ongoing franchises. However, with as many crossovers we see within the genre, there are those few dream matches that we continue to think about seeing become a reality.