Keep in mind that PvP is being designed by the same people Who released various failed iterations of shatter, routinely took over 6 months to make basic changes to frontlines, and generally don't listen to feedback, or thoroughly test changes prior to implementation. I don't think 7.1 will be the salvation to PvP that is frequently expected.

With their track record, I expect them to triple down on Crystaline Conflict and ignore the other two modes until it's absolutely necessary. I don't think they even are aware of premades being an issue, and they're probably oblivious to anything that happens both outside the scope of Crystaline Conflict, and off of the JP data centers.