Current propositions.
MMR
Start by doubling the CR/MMR gains. (*2/x2). Make it so you get 96 per win, if your MMR is less then the team you won againts. After that is finished, the play testers that actually understand how MMR works (E.G Noneed, Akuyama ETC.) will guide you on how to fix MMR past the point of what I just said. Deductable reasoning, you see if it works, if it doesnt, fix it, etc.
Play tester for said MMR changes on PTR
Some specific people that are well inputed on the game such as E.G Noneed, Akuyama, ETC. should get a temporary account for the PTR on which they will test the MMR changes. They will be provided with full prideful gear, a working cross server. Access to Game Master commands is not important, and should not be given.
Atleast 9-10 2v2/3v3 teams are needed to test this.
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This will ensure that it was actually tested with as many players as possible, well inputed players. Just the QA team alone is not enough. If this gets fixed, be sure that you can proudly say that PandaWoW is the first private Mist of Pandaria server that has 100% working Arena MMR.
I am open for discussion, thank you for your time.
@Zeox
Some pictures for reference on how MMR worked on retail. If you look at the chat, you will see displayed current mmr/cr and enemy mmr, and how much CR you gained/lost.
https://imgur.com/a/TvoLE ----> Provided by Surprize (Qwanya) Thanks.