The thing about the blue meth - does Walt know for sure that Todd can't make it blue? If not, I don't see how Walt would know/assume that Jesse is alive.
My best guess at this moment is that Walt is coming back to finish off the Nazi's and get his money (and possibly revenge for Hank/his family depending on what happens next episode), and when he arrives will be surprised that Jesse is still alive. Jesse wlil be the one to finally put Walt down for good.
Nordy 20 Caser: Hunter Renfroe, Jorge Soler SCB 10 case: Jon Denney, Danny Salazar, Scooter Gennett, Aaron Sanchez, Johnny Hellweg H/D 50 caser: High Risk Case 20 (D), Corey Seager (D), Sonny Gray (HD), Johnny Hellweg (H) 36 case Auction: Hunter Renfroe 34 Case Auction: Jon Denney