It's one of those "...wha?" announcements that means Koei Tecmo can get away with holding back platforms and release details for now. So even if a Western release is on the cards, we probably won't hear about it for a while.
What makes the news so unexpected is there's barely been a peep about Bladestorm: The Hundred Years' War in the last seven years. The game received mixed reviews in the West compared to Koei's Kessen games, which offered similar on-the-battefield strategy. If there's been demand for it to return, it's not exactly been deafening. On the flipside, it may be a different picture in Japan - Suzuki did say "fans have been especially vocal about their desires to see a new installment."
For another blast from the past, check out our PS3 Fanboy review of Bladestorm.