Unfortunately its the reality of the times.
We are partners for both Xilinx and Intel and having the same issues with both vendors. We work closely as well with Arrow and Avnet and are hearing 6-9 months maybe if the starts align right and you put in a firm order now.
This is not just with FPGA families, we are also seeing issues with TI, ST, Microchip, and others.
I think right at the moment, unless you are a tier 1 customer, you are at the mercy of the scalpers, because even the Tier 1's are fighting for parts.
It's killing the small guys however, because if they can't build their products, they can't sell anything.