Hmmm...
I see Cena's current challenge mirroring HHHs; being seen off by the collective 'might' of Legacy.
A returning Batista seems likely... The storyline is all set after Legacy put him out AGAIN i.e. All challenges fall by the wayside (HHH, Cena, m-a-y-b-e HBK, MVP or Henry too depending on time-frame), Orton cuts a 'I've seen off all challengers' promo and boom big Dave's music hits for his return.
Personally I REALLY hope Orton carries the belt into Mania....
"how long before this Championship grid lock ends"
In what sense do you think there is a grid-lock?