They've implied that there will be new PC announcements early 2017, so we will be able to determine if they continue down this route or shift to a more Japanese-centric strategy.
Oh yeah definitely, that'll be a test where Sega is focused long term in terms of Japanese support on PC.
I still feel their major Western aimed titles will come out on PC, which at this point will only be the Sonic franchise unless RGG Studio attempts another global IP, but with titles such as Yakuza and Valkyria Revolution they're handled by Sega America which has no PC development capabilities. Sega Europe will feel whatever resources it would take to port it to PC they would rather spend it on catering specifically to the PC market but hopefully this stance can be changed as they continue to see how well other Japanese titles do.