Viking 2018

Does anyone know when Viking will release their 2018 river sailings,specifically , Portugal?

I called Viking about two weeks ago and was told 2018 would probably be available in November of this year. I'm hoping o book a Rhine River for 2018, so I am watching.

BTW, the Douro was great, but different from other European river cruises and most of the sites require a bus to get to. Viking has their own buses, and as they carry about only 36 passengers (On a full size bus) they feel spacious.