No, there was a thread were they said they would give up the MAX name and call it the XD2 . At close to the same time , they said they would use a 6" screen rather than 7" as initially pplanned. The XD2 is the rename of the MAX. The MAX doesn't exist anymore.
Obviously as they got a lot of user input on their forums, things are probably fluid at the moment so many people wanted more than the RK3288 again, that their plans changed to more a true XD2 rather than an XL version of the XD. So yes, they will use a new SOC, hopefully the RK3299 (IMO). But that's the history
This is what they said at the time:
"Since many people oppose the XD Max, the program will be changed to XD2, upgrade the master chip"