Figure 8.

Different measurements of mass ordering. As illustrated in Fig. 7, the LB$\nu$B-II generation may provide major boosting of the JUNO sensitivity upon the boosting caused by $\mathrm{\Delta }{m}_{32}^2$ precision, which is expected to be at best $\ge 0.75\%$. The boosting effect is again illustrated as the difference between the JUNO alone (blue) and JUNO boosted (orange) curves. However, once the LB$\nu$B-III generation accelerator experiments start, we expect the $\mathrm{\Delta }{m}_{32}^2$ precision to be further enhanced up to $\sim 0.5\%$ by both DUNE and HK. At this moment, the JUNO data may only exploit this $\mathrm{\Delta }{m}_{32}^2$ precision to ensure a fully resolved vacuum only MO measurement (magenta), which can be compared to DUNE stand-alone measurement (green). Given the possible uncertainties due to experiment schedules, etc, all we can say is possible $>2030$. However, this opens for an unprecedented scenario where two as different as possible high precision MO measurements will be available to ensure the possible overall coherent of the neutrino standard phenomenology. Should discrepancies be seen, this may a smoking-gun evidence of the manifestation of new neutrino phenomenology.