I actually really loved the CA servers because I could get around 35 ping on a good day. I think that realistically, they shouldn't bring CA servers back because it is nowhere near as populated as any of the other regions. A more reasonable approach would to divide the US servers into two regions: both north and south. I would imagine that the north server could be hosted in Chicago as it a nice central location and a southern server could be hosted in Texas, which would also allow South American players to get a little bit more of a ping reduction.