We got some info about Fuji X-Pro2 through admiringlight.com who interviewed Torben Hondong from Fujifilm Germany at Photokina:
Finally, I asked Mr. Hondong about any news on the long-awaited replacement for the X-Pro 1.
Mr. Hondong said that it was difficult. Shooters of the X-Pro 1 desire the hybrid optical finder, and they are thinking of ways to bring something like the EVF of the X-T1 into a hybrid finder, but that this proves challenging to fit into a body that people expect. To be clear, he wasn’t confirming that an X-T1 sized finder would be in an X-Pro 2, but that the fact that the X-T1 exists makes designing the new finder challenging due to expectations. He mentioned the X100s and T improving on the hybrid finder of the X100, and that Fuji would see how the response to the X100T was to consider the options for any potential X-Pro replacement.