Integration of blockchain technology in the gambling industry might really help in fighting the rigged systems that are common in casinos. This will ensure higher chances of winning from the gamers' side. And with this enhancement of the gambling system, non gamblers might be attracted to try this industry. Thus, increasing the number of users and so the gambling industry will be a hit. Time will tell how far we are now in achieving this kind of environment in the gambling world. There are already few projects offering the utilization of blockchain technology in their betting platforms. We will know how efficient this system would be.
I don't think that the chances of winning for gamblers will increase just because of this. Integration with blockchain can make the gambling experience more secure as it will show transparency for all.
But I don't see that it will add some chance of winning for most gamblers.