Well until there is actual code to look at and we have access to such code we cant integrate and then of course there is the time to actually create an integration. I do not suspect anything being ready anytime real soon moto.
Xenforo may call it beta release but this is a brand new forum. This will be alpha work to say the least. I have seen the forum they have running on there site. Kinda reminds me of FusionBB which a friend of mine created. Its going to be sometime next year before they have a marketable product. Its going to take alot of trust if they expect to sell any licenses before they have a marketable product. That is going to limit access to there code.
I can most definately say that for us to look at there code they need to send us a copy or a customer of there's needs to provide access to a copy of the software.