8 months post op of Rhinoplasty, my nose has now reverted back to its old shape. Do I need a revision?

I do not see any current photos which show how your nose reverted back to the original shape.  It appears from the early post-op pictures that a hump was removed on the bridge and the tip elevated a bit.  It is unlikely the hump recurred.  However, it is not uncommon for there to be some loss of tip position after some rhinoplasties.  As the tip descends, a pseudo-hump forms because the bridge is once again high relative to the tip.  This problem is unlikely to resolve without a revision in which greater support is restored to the tip allowing it to remain in a stable higher position.  The tip and dorsum need to have an appropriate relationship with one another for a nose to look good (see more in the link below which directs to a video I made on this topic).