Let us be clear. Aspartame is unnecessary. We have natural stevia and successful formulations to work with plus an extensive track record centuries long. We really have zero excuse to use it at all.
Now we have the meta statistics that show us it induces cancers at an unacceptable level of divergence. This ample reason to kick it to the curb.
With stevia, the soda industry can easily switch. In fact i observe that Starbucks has already switched out to stevia, so the rest can not be far behind.