I'd suggest checking manga forums or dedicated Bleach fan sites. They often have detailed breakdowns and recommendations on where to pick up after a specific part. Sometimes, the author or official sources might provide cues as well.
Honestly, I don't know when the TYBW manga starts. But you could search manga databases or ask in manga enthusiast communities to get the details you need.
It's not certain. The decision to produce more Bleach novels might be influenced by the author's plans, market trends, and publisher's decisions. We'll just have to wait and see.