^^^It would be effectively like handing over the title to another star which whenever it's been attempted in the past (most famously Andre > DiBiase) it's resulted in the new recipient being stripped and the title vacated.
I know ultimately WWE
can do what they want, but they're defo in a bit of a tight corner over this as it ties in heavily with one of the few constant rulings they have ever really enforced over the years (i.e. if you're unable to defend your title, your forfeit it).
They can't just throw in a random substitute.... well it's not like they haven't done that before but still isn't smart in my opinion.
When exactly? (Remember, we're talking tag champs here which is it's own unique predicament)...This is what I've been getting at all along.
In fact, the more I think about it, just stripping Edge & Jericho may be the least disruptive/destructive solution.... Jericho (and Edge) would remain heel (Most fans would lap up their losing the straps), then as the initial pop subsides simply hand Legacy the belts by default. This will get the fans further on their backs like it did when HHH was handed the WHC by Bischoff during the early days of the brand split. Jericho can continue to spout off about a conspiracy and
should the writers care to go 'there' he can always attack Edge in a fit of paranoia, blaming him for lossing the belts, when he eventually returns from injury should there have ever been an Edge/Y2J fued on the (eventual) horizon.