#1. Brock Lesnar sets an unlikely template
Brock Lesnar has spent most of the last two years as Universal Champion, during which time a vocal contingent of WWE fans lamented his part-time status, and Raw, more often than not, not having a top champion on TV.
If WWE were to go the route of having one world title span two distinct brands, it’s possible the champion would pull double duty, working both shows each week. Another possibility to protect the champ from working nearly double the dates, would be to essentially alternate between brands, going from program to program on a monthly basis or so.
While the champion would be working at least a full-time schedule under those parameters, it’s likely that each show might go for a month or more at a time without the presence of a world champion, thus making it feel a bit like there’s a part-time champion like Lesnar with the strap. This could lend greater weight to the Intercontinental and United States Championships, though past precedent doesn’t necessarily suggest that would be the case.