Something worth noting about Scalebound,
The entire concept that they worked with under Microsoft was drastically different from what the entire IP was supposedly originally intended to be. Apparently the original idea was a story about a girl raising a dragon, and began development all the way back on the Wii. I'm not really sure if the IP as it existed under Microsoft was a concept Kamiya had much heart for, marketing was pretty quiet during the entire game's leadup, Kamiya seemed pretty "whatever" about a game he apparently always wanted to make, and one of the purported reasons the project was buckling was creative differences between P* and MS. The entire presentation of the game, along with the way the protagonist looked like, and the multiplayer concept, felt like it was Microsoft mandated rather than anything Platinum and Kamiya was hoping to go for (an ironic inverse of when Nintendo shot down PG's idea for TW101 being a more corporate-driven Nintendo all-star title, instead wanting them to make something entirely original and intrinsic to them).
Again, I have my doubts that Scalebound is the title we're talking about (even if some insiders seem to be spreading the rumor while Zhuge seems to be shooting it down), I feel like the concept of a synchronous combat system was something they've already implemented into Astral Chain... but then it's important to consider the fact that if Scalebound is brought back, I don't think it's going to be brought back the way it was initially revealed. I think it might end up harkening back to Kamiya's original concept for the game, which was a drastically different title. It'd be Scalebound in-name only. The protagonist is bound to get a redesign anyway because he basically looks exactly like DMC5 Nero.
So who knows. If it's Scalebound... it's probably not going to be an action title like the one we saw. I'd actually be down for Platinum to not do a stylish hack-and-slash like they usually do, I enjoy it when they go a little off the beaten path such as games like Vanquish and Okami (when they were still Clover).