You wouldn't believe this but just today I had a dream about news related to the newer games. In the dream they announce Future Tone for the West and a PC version. When I woke up I thought "wouldn't that be wonderful" and this is the first news I saw. Just a crazy coincidence in a series of crazy coincidences I've had with things like this.
I know it's a big mental leap to go from a English release rumor to a possible PC version, but I did a prediction long ago that if there is to be a PC port of anything at all, it would most likely be Future Tone since it's trivial to port it from the Arcade version. In that prediction I speculated that a PC version is most likely to come with a western release of Future Tone, so this is a step in the right direction. If Future Tone comes to the west and a PC version doesn't get announced in 3 to 6 months after the English release, then it's safe to say that Sony paid for exclusivity.
Anyway, this is big news for me because one of the reasons I was holding off on getting a PS4 was that even if I were to get one, then I would have no way of getting Miku's games. Getting Future Tone would be too complicated and pricey when I calculate everything. A European release would simplify that and spare me from currency conversion scalping.